> ## Documentation Index
> Fetch the complete documentation index at: https://funnelfox.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Amplitude integration

> Advanced product analytics with session replay and behavioral insights

The Amplitude integration enables automatic event tracking from your FunnelFox funnels directly into your existing Amplitude analytics setup.

Amplitude’s built-in Session Replay feature provides full visibility into the customer journey, helping you understand how users interact with every step of your funnels.

<Frame>
  <img src="https://mintcdn.com/funnelfox/lX27qkgxCbgzx_GN/assets/analytics-amplitude.png?fit=max&auto=format&n=lX27qkgxCbgzx_GN&q=85&s=6eabad37fe41e6259ba24801194470c8" width="1920" height="879" data-path="assets/analytics-amplitude.png" />
</Frame>

## Setup

To proceed with this setup, you need an active account in Amplitude.

### 1. Get your API key

1. Go to **Settings > Organization settings > Projects** in your [Amplitude dashboard](https://app.amplitude.com/).

<Frame>
  <img src="https://mintcdn.com/funnelfox/gkDdeY5TfMvEOge3/assets/organization-settings.png?fit=max&auto=format&n=gkDdeY5TfMvEOge3&q=85&s=eb806373ce54edc0483788c30dc1f5a2" width="1612" height="639" data-path="assets/organization-settings.png" />
</Frame>

2. Open your project or [create](https://amplitude.com/docs/get-started/create-project) a new one.

3. Click **Show** under API Key and copy the key.

<Frame>
  <img src="https://mintcdn.com/funnelfox/EejUjg3bjdmJx_0X/assets/amplitude-show-key.png?fit=max&auto=format&n=EejUjg3bjdmJx_0X&q=85&s=af04f85852adc0299bc2ec9c799136ea" width="1572" height="803" data-path="assets/amplitude-show-key.png" />
</Frame>

### 2. Apply your API key

1. Go to [Integrations > Amplitude](https://app.funnelfox.com/integrations/amplitude) in FunnelFox.

2. Paste your API key into the **Amplitude Public API Key** field.

<Frame>
  <img src="https://mintcdn.com/funnelfox/8YvbVoZ-U_hwupaI/assets/amplitude-paste-key.png?fit=max&auto=format&n=8YvbVoZ-U_hwupaI&q=85&s=9ad6499e848c8ea7a0085d574afbef6d" width="1920" height="879" data-path="assets/amplitude-paste-key.png" />
</Frame>

3. Click **Save changes**.

<Check>Your Amplitude integration is now active! Remember to republish your funnels to apply the changes.</Check>

### 3. Additional Amplitude (optional)

You can optionally add another Amplitude setup, if you have an additional instance.

1. Toggle on **Add Custom Amplitude**.

2. Set up at least one environment (production or sandbox):

* **URL**: Paste your custom Amplitude server URL.
* **Api Key**: Follow [steps 1-2](/integrations/analytics/amplitude#1-get-your-api-key) of this section to paste your additional Api Key.

<Frame>
  <img src="https://mintcdn.com/funnelfox/8YvbVoZ-U_hwupaI/assets/add-custom-amplitude.png?fit=max&auto=format&n=8YvbVoZ-U_hwupaI&q=85&s=d3bc77b30aa6d19c1d71d39465c692b3" width="1920" height="879" data-path="assets/add-custom-amplitude.png" />
</Frame>

3. Click **Save changes**.

## Events

Amplitude receives the following events from FunnelFox:

| Event                           | Description                                                                                         |
| ------------------------------- | --------------------------------------------------------------------------------------------------- |
| **Funnel navigation**           |                                                                                                     |
| onboarding\_started             | User begins the funnel experience                                                                   |
| onboarding\_completed           | User reaches a screen with `final` ID                                                               |
| screen\_presented               | User views a screen                                                                                 |
| screen\_completed               | User navigates away from a screen                                                                   |
| second\_screen\_presented       | User views the second screen                                                                        |
| products\_screen\_presented     | User views paywall with Price Picker or Plan Picker elements                                        |
| registration\_screen\_presented | User views a screen with Email input or authentication                                              |
| user\_email\_collected          | User entered a valid email                                                                          |
| link\_button\_clicked           | External link is clicked                                                                            |
| **Authentication**              |                                                                                                     |
| auth\_button\_clicked           | User taps an OAuth button to start authentication                                                   |
| auth\_success                   | Authentication provider returns a successful result                                                 |
| auth\_fail                      | Authentication fails or the provider returns an error                                               |
| **Purchases**                   |                                                                                                     |
| checkout\_screen\_presented     | User views a screen with Checkout element                                                           |
| checkout\_presented             | User views a Checkout element (can fire multiple times)                                             |
| checkout\_impression            | Checkout is shown for the first time (once per session)                                             |
| purchase\_started               | User entered payment details and tapped Pay, or tapped one-click purchase button (Apple/Google Pay) |
| purchase\_completed\_success    | Payment succeeds                                                                                    |
| purchase\_renewal\_success      | Renewal payment succeeds                                                                            |
| purchase\_completed\_fail       | Payment fails                                                                                       |
| **Subscriptions**               |                                                                                                     |
| subscription\_created           | Subscription is created for user                                                                    |
| subscription\_trialing          | Subscription enters trial period                                                                    |
| subscription\_activated         | Subscription enters a paid period after trial                                                       |
| subscription\_cycle             | Recurrent payment is paid for subscription                                                          |
| subscription\_paused            | Subscription billing was paused in PSP                                                              |
| subscription\_cancelled         | Subscription was cancelled                                                                          |
| subscription\_unpaid            | Recurring subscription payment was not charged                                                      |
| **Technical**                   |                                                                                                     |
| checkout\_init\_error           | Checkout initialization fails, except for digital wallets on devices that don't support them        |
| variable\_not\_found            | Variable placeholder has no assigned value                                                          |

<Tip>You can set up custom events to track in your funnel using [Custom Code](/editor/coding#custom-tracking).</Tip>

<Note>
  Turn on **Disable default events** in your [FunnelFox integration settings](https://app.funnelfox.com/integrations/amplitude) to disable Amplitude's default page view tracking.
</Note>

### Example events

<AccordionGroup>
  <Accordion title="onboarding_started">
    ```json theme={null}
    {
        "$insert_id": "01K9YZKXQVKW4HX4KDVCX65SDA",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388328354445,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 16:08:45.057000",
        "client_upload_time": "2025-11-13 16:08:46.886000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YZKN234GXFTK6J8PGPXSH4",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 78,
        "event_properties": {
        "onboarding": "demo-app",
        "sandbox": true
    },
        "event_time": "2025-11-13 16:08:45.057000",
        "event_type": "onboarding_started",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "onboarding_started",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 16:08:46.886000",
        "server_upload_time": "2025-11-13 16:08:46.894000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {},
        "uuid": "1936ed99-a1e8-45ef-b376-8968efdaa4a1",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="onboarding_completed">
    ```json theme={null}
    {
        "$insert_id": "01K9YYXCR8TZY6R2FSP7QYY8NS",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388319792384,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 15:56:26.798000",
        "client_upload_time": "2025-11-13 15:56:27.958000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YYW091ZYFZ55Y1CR0MFJ57",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 65,
        "event_properties": {
        "onboarding": "demo-app",
        "sandbox": true,
        "screen_cid": "final",
        "screen_id": "1AFzZhO9",
        "screen_index": 3
    },
        "event_time": "2025-11-13 15:56:26.798000",
        "event_type": "onboarding_completed",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "onboarding_completed",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 15:56:27.958000",
        "server_upload_time": "2025-11-13 15:56:27.964000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com"
    },
        "uuid": "8fb23b01-99b6-4608-b1a5-839e1e2515aa",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="screen_presented">
    ```json theme={null}
    {
        "$insert_id": "01K9YX59DX6GG40H58M1QS7ZAY",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388297800585,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 15:25:48.378000",
        "client_upload_time": "2025-11-13 15:25:48.603000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YX4HWREFV6N7X1X1ZJ5Q2C",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 9,
        "event_properties": {
        "elements": "[Text, Button, Checkout]",
        "onboarding": "demo-app",
        "sandbox": false,
        "screen_cid": "wj1YA9nv",
        "screen_id": "wj1YA9nv",
        "screen_index": 1
    },
        "event_time": "2025-11-13 15:25:48.378000",
        "event_type": "screen_presented",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "screen_presented",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 15:25:48.603000",
        "server_upload_time": "2025-11-13 15:25:48.609000",
        "session_id": 1763047540782,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "https://app.funnelfox.com/",
        "initial_referring_domain": "app.funnelfox.com",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY",
        "referrer": "https://app.funnelfox.com/",
        "referring_domain": "app.funnelfox.com"
    },
        "uuid": "930c546b-fe89-430e-a183-cb904cb0c5b9",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="screen_completed">
    ```json theme={null}
    {
        "_time": 1764693230858,
        "$insert_id": "01KBFYKH7EP15KJZTPBF2V20H5",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1406511815933,
        "app": 757882,
        "city": "Podgorica",
        "client_event_time": "2025-12-02 16:33:50.858000",
        "client_upload_time": "2025-12-02 16:33:51.290000",
        "country": "Montenegro",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KBFYK16MHPXRZDAEP7RXDTQ5",
        "device_type": "Windows",
        "display_name": "screen_completed",
        "dma": null,
        "event_id": 158,
        "event_properties": {
        "onboarding": "translator-app",
        "reply": "Improve my communication",
        "sandbox": false,
        "screen_cid": "goals",
        "screen_id": "jHXsakwR",
        "screen_index": 1
    },
        "event_time": "2025-12-02 16:33:50.858000",
        "event_type": "screen_completed",
        "group_properties": {},
        "groups": {},
        "ip_address": "79.140.147.143",
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-12-02 16:33:55.116000",
        "region": "Podgorica",
        "sample_rate": null,
        "server_received_time": "2025-12-02 16:33:51.290000",
        "server_upload_time": "2025-12-02 16:33:51.293000",
        "session_id": 1764693218593,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {},
        "uuid": "a369ccea-c7cc-49e6-9356-7691d095e801",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="second_screen_presented">
    ```json theme={null}
    {
        "$insert_id": "01K9YX59DYQVWKN318PVYFP2MA",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388297800585,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 15:25:48.379000",
        "client_upload_time": "2025-11-13 15:25:48.603000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YX4HWREFV6N7X1X1ZJ5Q2C",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 10,
        "event_properties": {
        "onboarding": "demo-app",
        "sandbox": false,
        "screen_cid": "wj1YA9nv",
        "screen_id": "wj1YA9nv",
        "screen_index": 1
    },
        "event_time": "2025-11-13 15:25:48.379000",
        "event_type": "second_screen_presented",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "second_screen_presented",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 15:25:48.603000",
        "server_upload_time": "2025-11-13 15:25:48.609000",
        "session_id": 1763047540782,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "https://app.funnelfox.com/",
        "initial_referring_domain": "app.funnelfox.com",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY",
        "referrer": "https://app.funnelfox.com/",
        "referring_domain": "app.funnelfox.com"
    },
        "uuid": "e9faa8e8-940c-4c50-876f-bba979bd5c1f",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="products_screen_presented">
    ```json theme={null}
    {
        "_time": 1763121227183,
        "$insert_id": "01KA13DS6F9J3W9VJHAB6BWV7E",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389197857516,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-14 11:53:47.183000",
        "client_upload_time": "2025-11-14 11:53:49.223000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KA13DRJS4XY3391DR2C05H68",
        "device_type": "Windows",
        "display_name": "products_screen_presented",
        "dma": null,
        "event_id": 134,
        "event_properties": {
        "onboarding": "demo-app",
        "sandbox": true,
        "screen_cid": "QbfqbhE9",
        "screen_id": "QbfqbhE9",
        "screen_index": 0
    },
        "event_time": "2025-11-14 11:53:47.183000",
        "event_type": "products_screen_presented",
        "group_properties": {},
        "groups": {},
        "ip_address": "193.124.206.155",
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 11:53:50.244000",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-14 11:53:49.223000",
        "server_upload_time": "2025-11-14 11:53:49.233000",
        "session_id": 1763121034056,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {},
        "uuid": "3e07590d-935c-496f-b1c1-231fc7ef2cd9",
        "version_name": null
    }

    ```
  </Accordion>

  <Accordion title="registration_screen_presented">
    ```json theme={null}
    {
        "$insert_id": "01K9YX4Y9NG8AX0KZ8177KR78D",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388297800585,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 15:25:40.790000",
        "client_upload_time": "2025-11-13 15:25:43.394000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YX4HWREFV6N7X1X1ZJ5Q2C",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 4,
        "event_properties": {
        "onboarding": "demo-app",
        "sandbox": false,
        "screen_cid": "QbfqbhE9",
        "screen_id": "QbfqbhE9",
        "screen_index": 0
    },
        "event_time": "2025-11-13 15:25:40.790000",
        "event_type": "registration_screen_presented",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "registration_screen_presented",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 15:25:43.394000",
        "server_upload_time": "2025-11-13 15:25:43.399000",
        "session_id": 1763047540782,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "https://app.funnelfox.com/",
        "initial_referring_domain": "app.funnelfox.com",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY",
        "referrer": "https://app.funnelfox.com/",
        "referring_domain": "app.funnelfox.com"
    },
        "uuid": "4f31b70b-f17c-478b-a6bf-1ef8e44edfa8",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="user_email_collected">
    ```json theme={null}
    {
        "$insert_id": "6937fd754ca32c91646d558a75098bde6976bc7e1d73fdd724c73094fcaf81db",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388298157377,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 15:26:18.395000",
        "client_upload_time": "2025-11-13 15:26:19.560000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YX62M8SJ1BR3AZBT52R53W",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 6,
        "event_properties": {
        "onboarding": "demo-app",
        "sandbox": true
    },
        "event_time": "2025-11-13 15:26:18.395000",
        "event_type": "user_email_collected",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "user_email_collected",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 15:26:19.560000",
        "server_upload_time": "2025-11-13 15:26:19.565000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com"
    },
        "uuid": "e2b3debf-68b8-489e-af63-4ee9bb2b4732",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="link_button_clicked">
    ```json theme={null}
    {
        "_time": 1763121069534,
        "$insert_id": "01KA138ZDR13A8SPW92D4AM3MT",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389196450853,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-14 11:51:09.534000",
        "client_upload_time": "2025-11-14 11:51:11.539000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KA137SQW32AWYM9A263GWKTQ",
        "device_type": "Windows",
        "display_name": "link_button_clicked",
        "dma": null,
        "event_id": 130,
        "event_properties": {
        "cta": false,
        "onboarding": "demo-app",
        "sandbox": true,
        "url": "https://funnelfox.com/docs/getting-started"
    },
        "event_time": "2025-11-14 11:51:09.534000",
        "event_type": "link_button_clicked",
        "group_properties": {},
        "groups": {},
        "ip_address": "193.124.206.155",
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 11:51:12.199000",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-14 11:51:11.539000",
        "server_upload_time": "2025-11-14 11:51:11.544000",
        "session_id": 1763121034056,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {},
        "uuid": "cd4e99de-4333-4f90-a806-839c3cb8f060",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="auth_button_clicked">
    ```json theme={null}
    {
        "_time": 1780425331939,
        "$insert_id": "01KT4SX56ZEXAMPLEBTNCLICK0",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1610000000017,
        "app": 757882,
        "city": "Oviedo",
        "client_event_time": "2026-06-02 18:35:31.939000",
        "client_upload_time": "2026-06-02 18:36:15.002000",
        "country": "Spain",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KQEXAMPLE0DEVICE0ID0001",
        "device_type": "Windows",
        "display_name": "auth_button_clicked",
        "dma": null,
        "event_id": 17,
        "event_properties": {
        "auth_provider": "google",
        "onboarding": "new-checkout",
        "sandbox": false
    },
        "event_time": "2026-06-02 18:35:31.939000",
        "event_type": "auth_button_clicked",
        "group_properties": {},
        "groups": {},
        "ip_address": "203.0.113.10",
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 148",
        "os_name": "Chrome",
        "os_version": "148",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2026-06-02 18:36:15.914000",
        "region": "Asturias",
        "sample_rate": null,
        "server_received_time": "2026-06-02 18:36:15.002000",
        "server_upload_time": "2026-06-02 18:36:15.007000",
        "session_id": 1780424848647,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {},
        "uuid": "2a34d61e-89fc-442f-b3f9-7ac3d0d9c0ce",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="auth_success">
    ```json theme={null}
    {
        "_time": 1780425376359,
        "$insert_id": "01KT4SYGK1EXAMPLESUCCESS00",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1610000000022,
        "app": 757882,
        "city": "Oviedo",
        "client_event_time": "2026-06-02 18:36:16.359000",
        "client_upload_time": "2026-06-02 18:36:17.658000",
        "country": "Spain",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KQEXAMPLE0DEVICE0ID0001",
        "device_type": "Windows",
        "display_name": "auth_success",
        "dma": null,
        "event_id": 22,
        "event_properties": {
        "auth_method": "sign_in",
        "auth_provider": "google",
        "onboarding": "new-checkout",
        "sandbox": false
    },
        "event_time": "2026-06-02 18:36:16.359000",
        "event_type": "auth_success",
        "group_properties": {},
        "groups": {},
        "ip_address": "203.0.113.10",
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 148",
        "os_name": "Chrome",
        "os_version": "148",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2026-06-02 18:36:19.684000",
        "region": "Asturias",
        "sample_rate": null,
        "server_received_time": "2026-06-02 18:36:17.658000",
        "server_upload_time": "2026-06-02 18:36:17.664000",
        "session_id": 1780424848647,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {},
        "uuid": "2729eaed-8aab-4359-b089-2b9da7e1b0c3",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="auth_fail">
    ```json theme={null}
    {
        "_time": 1780424858881,
        "$insert_id": "01KT4SEQ7WEXAMPLEAUTHFAIL0",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1610000000013,
        "app": 757882,
        "city": "Oviedo",
        "client_event_time": "2026-06-02 18:27:38.881000",
        "client_upload_time": "2026-06-02 18:27:40.168000",
        "country": "Spain",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KQEXAMPLE0DEVICE0ID0001",
        "device_type": "Windows",
        "display_name": "auth_fail",
        "dma": null,
        "event_id": 13,
        "event_properties": {
        "auth_error_code": "auth/popup-closed-by-user",
        "auth_provider": "google",
        "onboarding": "new-checkout",
        "sandbox": false
    },
        "event_time": "2026-06-02 18:27:38.881000",
        "event_type": "auth_fail",
        "group_properties": {},
        "groups": {},
        "ip_address": "203.0.113.10",
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 148",
        "os_name": "Chrome",
        "os_version": "148",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2026-06-02 18:27:41.883000",
        "region": "Asturias",
        "sample_rate": null,
        "server_received_time": "2026-06-02 18:27:40.168000",
        "server_upload_time": "2026-06-02 18:27:40.170000",
        "session_id": 1780424848647,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {},
        "uuid": "16d942d5-fbd2-451d-bb58-1efcf9167966",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="checkout_screen_presented">
    ```json theme={null}
    {
        "$insert_id": "01K9YZKNPMGZCQF968JJ8BTWP9",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388328354445,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 16:08:37.508000",
        "client_upload_time": "2025-11-13 16:08:39.871000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YZKN234GXFTK6J8PGPXSH4",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 75,
        "event_properties": {
        "onboarding": "demo-app",
        "sandbox": true,
        "screen_cid": "wj1YA9nv",
        "screen_id": "wj1YA9nv",
        "screen_index": 1
    },
        "event_time": "2025-11-13 16:08:37.508000",
        "event_type": "checkout_screen_presented",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "checkout_screen_presented",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 16:08:39.871000",
        "server_upload_time": "2025-11-13 16:08:39.874000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {},
        "uuid": "47ae9eca-f744-4e54-8ee0-9d9df7bc0ee0",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="checkout_presented">
    ```json theme={null}
    {
        "$insert_id": "01K9YZKS8H5EBV8CDX8TKXBQPM",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388328354445,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 16:08:40.477000",
        "client_upload_time": "2025-11-13 16:08:41.638000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YZKN234GXFTK6J8PGPXSH4",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 76,
        "event_properties": {
        "currency": "USD",
        "onboarding": "demo-app",
        "payment_method": "card",
        "payment_provider": "stripe",
        "price": 1,
        "price_fact": 1,
        "product_id": "price_1QoUWMD5ejWt1H2ikGfdf6dh",
        "sandbox": true,
        "vendor_price_id": "price_1QoUWMD5ejWt1H2ikGfdf6dh",
        "vendor_product_id": "prod_RhuL42eCCgykn4"
    },
        "event_time": "2025-11-13 16:08:40.477000",
        "event_type": "checkout_presented",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "checkout_presented",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 16:08:41.638000",
        "server_upload_time": "2025-11-13 16:08:41.655000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {},
        "uuid": "8b78640d-0c5b-4458-9fe3-6c119f7be337",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="checkout_impression">
    ```json theme={null}
    {
        "$insert_id": "01K9YZKS8NSNA2T6EM5PM1HNXF",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388328354445,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 16:08:40.482000",
        "client_upload_time": "2025-11-13 16:08:41.638000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YZKN234GXFTK6J8PGPXSH4",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 77,
        "event_properties": {
        "currency": "USD",
        "onboarding": "demo-app",
        "payment_method": "card",
        "payment_provider": "stripe",
        "price": 1,
        "price_fact": 1,
        "product_id": "price_1QoUWMD5ejWt1H2ikGfdf6dh",
        "sandbox": true,
        "vendor_price_id": "price_1QoUWMD5ejWt1H2ikGfdf6dh",
        "vendor_product_id": "prod_RhuL42eCCgykn4"
    },
        "event_time": "2025-11-13 16:08:40.482000",
        "event_type": "checkout_impression",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "checkout_impression",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 16:08:41.638000",
        "server_upload_time": "2025-11-13 16:08:41.655000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {},
        "uuid": "59620707-80d7-4c1b-9720-f36a9e715650",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="purchase_started">
    ```json theme={null}
    {
        "$insert_id": "01K9YZN31E51SFXDRMHXRQ280G",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388328354445,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 16:09:23.252000",
        "client_upload_time": "2025-11-13 16:09:24.415000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YZKN234GXFTK6J8PGPXSH4",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 79,
        "event_properties": {
        "currency": "USD",
        "onboarding": "demo-app",
        "payment_method": "card",
        "payment_provider": "stripe",
        "price": 1,
        "price_fact": 1,
        "product_id": "price_1QoUWMD5ejWt1H2ikGfdf6dh",
        "sandbox": true,
        "vendor_price_id": "price_1QoUWMD5ejWt1H2ikGfdf6dh",
        "vendor_product_id": "prod_RhuL42eCCgykn4"
    },
        "event_time": "2025-11-13 16:09:23.252000",
        "event_type": "purchase_started",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "purchase_started",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 16:09:24.415000",
        "server_upload_time": "2025-11-13 16:09:24.425000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {},
        "uuid": "301e7adb-3531-4b18-984c-e8bbb32b9ba7",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="purchase_completed_success">
    ```json theme={null}
    {
        "_time": 1769538632960,
        "$insert_id": "in_1SuH223Yhl9rcCZf9niqE0U6",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1460957546908,
        "app": 757882,
        "city": "Gijón",
        "client_event_time": "2026-01-27 18:30:32.960000",
        "client_upload_time": "2026-01-27 18:30:34.084000",
        "country": "Spain",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KG0BGS8ZZY39P5PQM0W1F68M",
        "device_type": "Windows",
        "display_name": "purchase_completed_success",
        "dma": null,
        "event_id": 240,
        "event_properties": {
        "currency": "USD",
        "onboarding": "demo-app",
        "payment_method": "card",
        "payment_provider": "stripe",
        "price": 10,
        "price_fact": 10,
        "product_id": "price_1SsMBZ3Yhl9rcCZffUckFJE9",
        "product_name": "Premium Plan",
        "sandbox": true,
        "subscription_id": "sub_1SuH223Yhl9rcCZfuaMCcSB5",
        "transaction_id": "in_1SuH223Yhl9rcCZf9niqE0U6",
        "vendor_price_id": "price_1SsMBZ3Yhl9rcCZffUckFJE9",
        "vendor_product_id": "prod_TY70G3LpTNKla1",
        "vendor_profile_id": "cus_Ts1400K0JNPnhz"
    },
        "event_time": "2026-01-27 18:30:32.960000",
        "event_type": "purchase_completed_success",
        "group_properties": {},
        "groups": {},
        "ip_address": "",
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 144",
        "os_name": "Chrome",
        "os_version": "144",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2026-01-27 18:30:35.982000",
        "region": "Asturias",
        "sample_rate": null,
        "server_received_time": "2026-01-27 18:30:34.084000",
        "server_upload_time": "2026-01-27 18:30:34.087000",
        "session_id": 1769538613221,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "amplitude-test@example.com"
    },
        "uuid": "c1f77172-0832-49ef-9311-3b101c621ff5",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="purchase_renewal_success">
    ```json theme={null}
    {
        "_time": 1763110939977,
        "$insert_id": "in_1SaRnw3Yhl9rcCZfRenew01",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389097133316,
        "app": 757882,
        "city": "Prague",
        "client_event_time": "2025-11-14 09:02:19.977000",
        "client_upload_time": "2025-11-14 09:02:30.028000",
        "country": "Czech Republic",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "iOS",
        "device_id": "fnlfx_01KA0RWD8RDPCQSPEJ7MJ03QVB",
        "device_type": "Apple iPhone",
        "display_name": "purchase_renewal_success",
        "dma": null,
        "event_id": 2930299,
        "event_properties": {
        "currency": "USD",
        "onboarding": "demo-app",
        "payment_provider": "stripe",
        "price": 1,
        "price_fact": 1,
        "product_id": "price_1SaRnw3Yhl9rcCZfRenew01",
        "product_name": "Premium Plan",
        "vendor_price_id": "price_1SaRnw3Yhl9rcCZfRenew01"
    },
        "event_time": "2025-11-14 09:02:19.977000",
        "event_type": "purchase_renewal_success",
        "group_properties": {},
        "groups": {},
        "ip_address": "45.130.65.126",
        "language": "English",
        "library": "amplitude-go/1.0.2",
        "location_lat": null,
        "location_lng": null,
        "os": "Mobile Safari 16",
        "os_name": "Mobile Safari",
        "os_version": "16",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 09:02:30.281000",
        "region": "Prague",
        "sample_rate": null,
        "server_received_time": "2025-11-14 09:02:30.028000",
        "server_upload_time": "2025-11-14 09:02:30.039000",
        "session_id": 1763110491953,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "EMPTY",
        "initial_referring_domain": "EMPTY",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY"
    },
        "uuid": "6c50bfd4-5582-4abe-9aea-43c5ebbf5d6e",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="purchase_completed_fail">
    ```json theme={null}
    {
        "$insert_id": "01K9YZN4B12ZZCT6XB0BF6YWWP",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388328354445,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 16:09:24.590000",
        "client_upload_time": "2025-11-13 16:09:25.769000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YZKN234GXFTK6J8PGPXSH4",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 80,
        "event_properties": {
        "currency": "USD",
        "onboarding": "demo-app",
        "payment_method": "card",
        "payment_provider": "stripe",
        "price": 1,
        "price_fact": 1,
        "product_id": "price_1QoUWMD5ejWt1H2ikGfdf6dh",
        "sandbox": true,
        "vendor_price_id": "price_1QoUWMD5ejWt1H2ikGfdf6dh",
        "vendor_product_id": "prod_RhuL42eCCgykn4"
    },
        "event_time": "2025-11-13 16:09:24.590000",
        "event_type": "purchase_completed_fail",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "purchase_completed_fail",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 16:09:25.769000",
        "server_upload_time": "2025-11-13 16:09:25.775000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {},
        "uuid": "2ecff79a-0317-4853-94cd-31777f9f1e5b",
        "version_name": null
    }
    ```
  </Accordion>

  <Accordion title="subscription_created">
    ```json theme={null}
    {
        "_time": 1763111125220,
        "$insert_id": "01KA0SSFVYG6WYDDHHD8P1MVJB",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389104091673,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-14 09:05:25.220000",
        "client_upload_time": "2025-11-14 09:05:35.267000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi",
        "user_properties_updated": true
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KA0SQK1DSSVR4EXX7ZAFMS9X",
        "device_type": "Windows",
        "display_name": "subscription_created",
        "dma": null,
        "event_id": 694620789,
        "event_properties": {
        "billing_interval": "day",
        "currency": "USD",
        "onboarding": "01K3GQH43MCTKFTJSY4Z6906AV",
        "payment_provider": "stripe",
        "price": 1,
        "price_usd": 1,
        "product_id": "pro_01ka0r5w37tsg0rnnjct1km7rr",
        "product_name": "Premium Plan",
        "status": "created",
        "subscription_id": "01KA0SSFVW34ND5BPNVCM9D231"
    },
        "event_time": "2025-11-14 09:05:25.220000",
        "event_type": "subscription_created",
        "group_properties": {},
        "groups": {},
        "ip_address": "193.124.206.155",
        "language": "English",
        "library": "amplitude-go/1.0.2",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 09:05:36.194000",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-14 09:05:35.267000",
        "server_upload_time": "2025-11-14 09:05:35.273000",
        "session_id": 1763110173069,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com"
    },
        "uuid": "323509f3-7c7d-47c4-8ff2-6f7424921bfa",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="subscription_trialing">
    ```json theme={null}
    {
        "_time": 1763111125242,
        "$insert_id": "01KA0SSFWQSWHRNNS5Q1TW0C71",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389104091673,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-14 09:05:25.242000",
        "client_upload_time": "2025-11-14 09:05:35.267000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01KA0SQK1DSSVR4EXX7ZAFMS9X",
        "device_type": "Windows",
        "display_name": "subscription_trialing",
        "dma": null,
        "event_id": 969833606,
        "event_properties": {
        "billing_interval": "day",
        "currency": "USD",
        "onboarding": "01K3GQH43MCTKFTJSY4Z6906AV",
        "payment_provider": "stripe",
        "price": 1,
        "price_usd": 1,
        "product_id": "pro_01ka0r5w37tsg0rnnjct1km7rr",
        "product_name": "Premium Plan",
        "status": "trialing",
        "subscription_id": "01KA0SSFVW34ND5BPNVCM9D231"
    },
        "event_time": "2025-11-14 09:05:25.242000",
        "event_type": "subscription_trialing",
        "group_properties": {},
        "groups": {},
        "ip_address": "193.124.206.155",
        "language": "English",
        "library": "amplitude-go/1.0.2",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 09:05:36.194000",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-14 09:05:35.267000",
        "server_upload_time": "2025-11-14 09:05:35.273000",
        "session_id": 1763110173069,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com"
    },
        "uuid": "6247caa1-04b8-4758-8a50-e1093f1b0552",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="subscription_activated">
    ```json theme={null}
    {
        "_time": 1763110836430,
        "$insert_id": "01KA0SGNK8ET37GAVZ5378G198",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389097133316,
        "app": 757882,
        "city": "Prague",
        "client_event_time": "2025-11-14 09:00:36.430000",
        "client_upload_time": "2025-11-14 09:00:46.472000",
        "country": "Czech Republic",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi",
        "user_properties_updated": true
    },
        "device_carrier": null,
        "device_family": "iOS",
        "device_id": "fnlfx_01KA0RWD8RDPCQSPEJ7MJ03QVB",
        "device_type": "Apple iPhone",
        "display_name": "subscription_activated",
        "dma": null,
        "event_id": 838843052,
        "event_properties": {
        "billing_interval": "day",
        "currency": "USD",
        "onboarding": "01K3GQH43MCTKFTJSY4Z6906AV",
        "payment_provider": "stripe",
        "price": 1,
        "price_usd": 1,
        "product_id": "pro_01ka0r5w37tsg0rnnjct1km7rr",
        "product_name": "Premium Plan",
        "status": "active",
        "subscription_id": "01KA0RYHZSBVD1HBPJ9EM9XW34"
    },
        "event_time": "2025-11-14 09:00:36.430000",
        "event_type": "subscription_activated",
        "group_properties": {},
        "groups": {},
        "ip_address": "45.130.65.126",
        "language": "English",
        "library": "amplitude-go/1.0.2",
        "location_lat": null,
        "location_lng": null,
        "os": "Mobile Safari 16",
        "os_name": "Mobile Safari",
        "os_version": "16",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 09:00:47.322000",
        "region": "Prague",
        "sample_rate": null,
        "server_received_time": "2025-11-14 09:00:46.472000",
        "server_upload_time": "2025-11-14 09:00:46.477000",
        "session_id": 1763110491953,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "EMPTY",
        "initial_referring_domain": "EMPTY",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY"
    },
        "uuid": "2b434b2e-7b3a-4a21-941b-1b7c5a6d59fd",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="subscription_cycle">
    ```json theme={null}
    {
        "_time": 1763110836452,
        "$insert_id": "01KA0SGNM1SVJ7TD7PJNCRN2KW",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389097133316,
        "app": 757882,
        "city": "Prague",
        "client_event_time": "2025-11-14 09:00:36.452000",
        "client_upload_time": "2025-11-14 09:00:46.472000",
        "country": "Czech Republic",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "iOS",
        "device_id": "fnlfx_01KA0RWD8RDPCQSPEJ7MJ03QVB",
        "device_type": "Apple iPhone",
        "display_name": "subscription_cycle",
        "dma": null,
        "event_id": 518705674,
        "event_properties": {
        "billing_interval": "day",
        "currency": "USD",
        "onboarding": "01K3GQH43MCTKFTJSY4Z6906AV",
        "payment_provider": "stripe",
        "price": 1,
        "price_usd": 1,
        "product_id": "pro_01ka0r5w37tsg0rnnjct1km7rr",
        "product_name": "Premium Plan",
        "status": "active",
        "subscription_id": "01KA0RYHZSBVD1HBPJ9EM9XW34"
    },
        "event_time": "2025-11-14 09:00:36.452000",
        "event_type": "subscription_cycle",
        "group_properties": {},
        "groups": {},
        "ip_address": "45.130.65.126",
        "language": "English",
        "library": "amplitude-go/1.0.2",
        "location_lat": null,
        "location_lng": null,
        "os": "Mobile Safari 16",
        "os_name": "Mobile Safari",
        "os_version": "16",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 09:00:47.322000",
        "region": "Prague",
        "sample_rate": null,
        "server_received_time": "2025-11-14 09:00:46.472000",
        "server_upload_time": "2025-11-14 09:00:46.477000",
        "session_id": 1763110491953,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "EMPTY",
        "initial_referring_domain": "EMPTY",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY"
    },
        "uuid": "6a06fa65-333c-4517-8f92-f888c16dace6",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="subscription_paused">
    ```json theme={null}
    {
        "_time": 1763110881497,
        "$insert_id": "01KA0SJ1YVV35RS9H9W1SET1C5",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389097133316,
        "app": 757882,
        "city": "Prague",
        "client_event_time": "2025-11-14 09:01:21.497000",
        "client_upload_time": "2025-11-14 09:01:31.538000",
        "country": "Czech Republic",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "iOS",
        "device_id": "fnlfx_01KA0RWD8RDPCQSPEJ7MJ03QVB",
        "device_type": "Apple iPhone",
        "display_name": "subscription_paused",
        "dma": null,
        "event_id": 846952733,
        "event_properties": {
        "billing_interval": "day",
        "currency": "USD",
        "onboarding": "01K3GQH43MCTKFTJSY4Z6906AV",
        "payment_provider": "stripe",
        "price": 1,
        "price_usd": 1,
        "product_id": "pro_01ka0r5w37tsg0rnnjct1km7rr",
        "product_name": "Premium Plan",
        "status": "paused",
        "subscription_id": "01KA0RYHZSBVD1HBPJ9EM9XW34"
    },
        "event_time": "2025-11-14 09:01:21.497000",
        "event_type": "subscription_paused",
        "group_properties": {},
        "groups": {},
        "ip_address": "45.130.65.126",
        "language": "English",
        "library": "amplitude-go/1.0.2",
        "location_lat": null,
        "location_lng": null,
        "os": "Mobile Safari 16",
        "os_name": "Mobile Safari",
        "os_version": "16",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 09:01:32.481000",
        "region": "Prague",
        "sample_rate": null,
        "server_received_time": "2025-11-14 09:01:31.538000",
        "server_upload_time": "2025-11-14 09:01:31.549000",
        "session_id": 1763110491953,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "EMPTY",
        "initial_referring_domain": "EMPTY",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY"
    },
        "uuid": "57b7a478-772d-4be2-855e-34e04d699a38",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="subscription_cancelled">
    ```json theme={null}
    {
        "_time": 1763111033693,
        "$insert_id": "01KA0SPP6JANY1NKB6PM39T877",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389097133316,
        "app": 757882,
        "city": "Prague",
        "client_event_time": "2025-11-14 09:03:53.693000",
        "client_upload_time": "2025-11-14 09:04:03.733000",
        "country": "Czech Republic",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "iOS",
        "device_id": "fnlfx_01KA0RWD8RDPCQSPEJ7MJ03QVB",
        "device_type": "Apple iPhone",
        "display_name": "subscription_cancelled",
        "dma": null,
        "event_id": 150658805,
        "event_properties": {
        "billing_interval": "day",
        "currency": "USD",
        "onboarding": "01K3GQH43MCTKFTJSY4Z6906AV",
        "payment_provider": "stripe",
        "price": 1,
        "price_usd": 1,
        "product_id": "pro_01ka0r5w37tsg0rnnjct1km7rr",
        "product_name": "Premium Plan",
        "status": "cancelled",
        "subscription_id": "01KA0RYHZSBVD1HBPJ9EM9XW34"
    },
        "event_time": "2025-11-14 09:03:53.693000",
        "event_type": "subscription_cancelled",
        "group_properties": {},
        "groups": {},
        "ip_address": "45.130.65.126",
        "language": "English",
        "library": "amplitude-go/1.0.2",
        "location_lat": null,
        "location_lng": null,
        "os": "Mobile Safari 16",
        "os_name": "Mobile Safari",
        "os_version": "16",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 09:04:04.694000",
        "region": "Prague",
        "sample_rate": null,
        "server_received_time": "2025-11-14 09:04:03.733000",
        "server_upload_time": "2025-11-14 09:04:03.737000",
        "session_id": 1763110491953,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "EMPTY",
        "initial_referring_domain": "EMPTY",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY"
    },
        "uuid": "39eaab2d-8650-459a-b362-8e5549e90277",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="subscription_unpaid">
    ```json theme={null}
    {
        "_time": 1764167722472,
        "$insert_id": "01KB09E8QH7SNNE5118QPKZCYB",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1400986677548,
        "app": 757882,
        "city": "Helsinki",
        "client_event_time": "2025-11-26 14:35:22.472000",
        "client_upload_time": "2025-11-26 14:35:32.521000",
        "country": "Finland",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "Android",
        "device_id": "fnlfx_01KB07C3CE2SDAZTX0F7WCHSTV",
        "device_type": "Android",
        "display_name": "subscription_unpaid",
        "dma": null,
        "event_id": 957676361,
        "event_properties": {
        "billing_interval": "month",
        "currency": "USD",
        "onboarding": "01K3GQH43MCTKFTJSY4Z6906AV",
        "payment_provider": "stripe",
        "price": 10,
        "price_usd": 10,
        "product_id": "pro_01k5tsv5za56n5je5j7qvxy9em",
        "product_name": "Premium Plan",
        "status": "unpaid",
        "subscription_id": "01KB07CXRYTRZ4TZ1X2MEAGAGE"
    },
        "event_time": "2025-11-26 14:35:22.472000",
        "event_type": "subscription_unpaid",
        "group_properties": {},
        "groups": {},
        "ip_address": "204.3.49.132",
        "language": "English",
        "library": "amplitude-go/1.0.2",
        "location_lat": null,
        "location_lng": null,
        "os": "Facebook 520",
        "os_name": "Facebook",
        "os_version": "520",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-26 14:35:33.917000",
        "region": "Uusimaa",
        "sample_rate": null,
        "server_received_time": "2025-11-26 14:35:32.521000",
        "server_upload_time": "2025-11-26 14:35:32.530000",
        "session_id": 1764165832560,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "EMPTY",
        "initial_referring_domain": "EMPTY",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY"
    },
        "uuid": "f4169104-d20a-46b2-95bc-4f0c1087d0d1",
        "version_name": null
    }
    ```

    *The `product_name` field is currently populated for Stripe payments only.*
  </Accordion>

  <Accordion title="checkout_init_error">
    ```json theme={null}
    {
        "_time": 1763110502156,
        "$insert_id": "01KA0S6FR1YSZ0G9J5ZBSXWV4S",
        "$schema": 13,
        "amplitude_attribution_ids": null,
        "amplitude_id": 1389097133316,
        "app": 757882,
        "city": "Prague",
        "client_event_time": "2025-11-14 08:55:02.156000",
        "client_upload_time": "2025-11-14 08:55:03.407000",
        "country": "Czech Republic",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "device_carrier": null,
        "device_family": "iOS",
        "device_id": "fnlfx_01KA0RWD8RDPCQSPEJ7MJ03QVB",
        "device_type": "Apple iPhone",
        "display_name": "checkout_init_error",
        "dma": null,
        "event_id": 7,
        "event_properties": {
        "message": "Failed to load Paddle.js",
        "onboarding": "demo-app",
        "payment_method": "paddle",
        "payment_provider": "paddle",
        "price": 0,
        "price_fact": 0,
        "product_id": "pri_01ka0rdxd462zbwgrrzhvm60dc",
        "sandbox": true,
        "ua": "Mozilla/5.0 (iPhone; CPU iPhone OS 15_7_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Mobile/15E148 Safari/604.1 DaumApps/8.0.1 DaumDevice/mobile"
    },
        "event_time": "2025-11-14 08:55:02.156000",
        "event_type": "checkout_init_error",
        "group_properties": {},
        "groups": {},
        "ip_address": "45.130.65.126",
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Mobile Safari 16",
        "os_name": "Mobile Safari",
        "os_version": "16",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "processed_time": "2025-11-14 08:55:03.872000",
        "region": "Prague",
        "sample_rate": null,
        "server_received_time": "2025-11-14 08:55:03.407000",
        "server_upload_time": "2025-11-14 08:55:03.409000",
        "session_id": 1763110491953,
        "source_id": null,
        "start_version": null,
        "timeline_hidden": false,
        "user_id": null,
        "user_properties": {
        "email": "test@example.com",
        "initial_dclid": "EMPTY",
        "initial_fbclid": "EMPTY",
        "initial_gbraid": "EMPTY",
        "initial_gclid": "EMPTY",
        "initial_ko_click_id": "EMPTY",
        "initial_li_fat_id": "EMPTY",
        "initial_msclkid": "EMPTY",
        "initial_referrer": "EMPTY",
        "initial_referring_domain": "EMPTY",
        "initial_rtd_cid": "EMPTY",
        "initial_ttclid": "EMPTY",
        "initial_twclid": "EMPTY",
        "initial_utm_campaign": "EMPTY",
        "initial_utm_content": "EMPTY",
        "initial_utm_id": "EMPTY",
        "initial_utm_medium": "EMPTY",
        "initial_utm_source": "EMPTY",
        "initial_utm_term": "EMPTY",
        "initial_wbraid": "EMPTY"
    },
        "uuid": "c49db08a-f8e2-4884-b355-4381e75acc54",
        "version_name": null
    }

    ```
  </Accordion>

  <Accordion title="variable_not_found">
    ```json theme={null}
    {
        "$insert_id": "01K9YYVJHNZHDKKMEWESQBWBYV",
        "$insert_key": null,
        "$schema": 13,
        "adid": null,
        "amplitude_attribution_ids": null,
        "amplitude_event_type": null,
        "amplitude_id": 1388313578156,
        "app": 757882,
        "city": "Amsterdam",
        "client_event_time": "2025-11-13 15:55:27.204000",
        "client_upload_time": "2025-11-13 15:55:29.398000",
        "country": "Netherlands",
        "data": {
        "group_first_event": {},
        "group_ids": {},
        "path": "/2/httpapi"
    },
        "data_type": "event",
        "device_brand": null,
        "device_carrier": null,
        "device_family": "Windows",
        "device_id": "fnlfx_01K9YYAZR8VHZN4MCRF6KY3GWM",
        "device_manufacturer": null,
        "device_model": null,
        "device_type": "Windows",
        "dma": null,
        "event_id": 38,
        "event_properties": {
        "onboarding": "demo-app",
        "sandbox": true,
        "variable": "name"
    },
        "event_time": "2025-11-13 15:55:27.204000",
        "event_type": "variable_not_found_error",
        "global_user_properties": {},
        "group_properties": {},
        "groups": {},
        "idfa": null,
        "ip_address": "193.124.206.155",
        "is_attribution_event": false,
        "isChildRow": false,
        "language": "English",
        "library": "amplitude-ts/2.11.13",
        "location_lat": null,
        "location_lng": null,
        "os": "Chrome 142",
        "os_name": "Chrome",
        "os_version": "142",
        "partner_id": null,
        "paying": null,
        "plan": {},
        "platform": "Web",
        "raw_event_type": "variable_not_found_error",
        "region": "North Holland",
        "sample_rate": null,
        "server_received_time": "2025-11-13 15:55:29.398000",
        "server_upload_time": "2025-11-13 15:55:29.405000",
        "session_id": 1763047575821,
        "source_id": null,
        "start_version": null,
        "user_creation_time": null,
        "user_id": null,
        "user_properties": {},
        "uuid": "390f90fd-f22f-4e75-a053-35e8deb95933",
        "version_name": null
    }
    ```
  </Accordion>
</AccordionGroup>

## Payment flow events

When customers purchase subscriptions, the event flow varies depending on the PSP.

Select your PSP below to see how each payment type triggers Amplitude events for your setup.

<AccordionGroup>
  <Accordion title="Stripe">
    | Purchase type                     |                                  Trial start                                  |                             Conversion / Sub start                             |                       Renewal                      |
    | --------------------------------- | :---------------------------------------------------------------------------: | :----------------------------------------------------------------------------: | :------------------------------------------------: |
    | **Subscription only**             |                                       —                                       | `purchase_completed_success`, `subscription_created`, `subscription_activated` |  `subscription_cycle`, `purchase_renewal_success`  |
    | **Free trial**                    | `purchase_completed_success`, `subscription_created`, `subscription_trialing` |  `subscription_activated`, `subscription_cycle`, `purchase_completed_success`  |  `purchase_renewal_success`, `subscription_cycle`  |
    | **Paid trial**                    | `purchase_completed_success`, `subscription_created`, `subscription_trialing` |   `subscription_cycle`, `subscription_activated`, `purchase_renewal_success`   |  `subscription_cycle`, `purchase_renewal_success`  |
    | **Subscription + intro discount** | `purchase_completed_success`, `subscription_created`, `subscription_trialing` |                `purchase_renewal_success`, `subscription_cycle`                |  `subscription_cycle`, `purchase_renewal_success`  |
    | **Lifetime (one-off)**            |                                       —                                       |                          `purchase_completed_success`                          |                          —                         |
    | **Subscription upsell**\*         |                                       —                                       | `purchase_completed_success`, `subscription_created`, `subscription_activated` | `purchase_completed_success`, `subscription_cycle` |

    \* Additional subscription upsell (not upgrade instead of initial one).
  </Accordion>

  <Accordion title="Paddle">
    | Purchase type                     |                                  Trial start                                  |                             Conversion / Sub start                             |                       Renewal                       |
    | --------------------------------- | :---------------------------------------------------------------------------: | :----------------------------------------------------------------------------: | :-------------------------------------------------: |
    | **Subscription only**             |                                       —                                       | `purchase_completed_success`, `subscription_created`, `subscription_activated` | `subscription_cycle` x2, `purchase_renewal_success` |
    | **Free trial**                    | `purchase_completed_success`, `subscription_created`, `subscription_trialing` |  `subscription_activated`, `subscription_cycle` x2, `purchase_renewal_success` |   `subscription_cycle`, `purchase_renewal_success`  |
    | **Paid trial**                    | `purchase_completed_success`, `subscription_created`, `subscription_trialing` |  `subscription_activated`, `subscription_cycle` x2, `purchase_renewal_success` |   `subscription_cycle`, `purchase_renewal_success`  |
    | **Subscription + intro discount** |                                       —                                       | `purchase_completed_success`, `subscription_created`, `subscription_activated` | `subscription_cycle` x2, `purchase_renewal_success` |
    | **Lifetime (one-off)**            |                                       —                                       |                          `purchase_completed_success`                          |                          —                          |
  </Accordion>

  <Accordion title="Solidgate">
    | Purchase type                       |                                   Trial start                                  |                             Conversion / Sub start                             |                      Renewal                     |
    | ----------------------------------- | :----------------------------------------------------------------------------: | :----------------------------------------------------------------------------: | :----------------------------------------------: |
    | **Subscription only**               |                                        —                                       | `purchase_completed_success`, `subscription_created`, `subscription_activated` | `purchase_renewal_success`, `subscription_cycle` |
    | **Free trial**                      | `purchase_completed_success`, `subscription_created`, `subscription_activated` |                `purchase_renewal_success`, `subscription_cycle`                | `purchase_renewal_success`, `subscription_cycle` |
    | **Paid trial**                      | `purchase_completed_success`, `subscription_created`, `subscription_activated` |                `purchase_renewal_success`, `subscription_cycle`                | `purchase_renewal_success`, `subscription_cycle` |
    | **Subscription + intro discount**\* | `purchase_completed_success`, `subscription_created`, `subscription_activated` |                `purchase_renewal_success`, `subscription_cycle`                | `purchase_renewal_success`, `subscription_cycle` |
    | **Lifetime (one-off)**              |                                        —                                       |                          `purchase_completed_success`                          |                         —                        |

    \* Intro discounts cannot be configured directly in Solidgate. They are applied via a paid trial and use the same transactions.
  </Accordion>

  <Accordion title="FunnelFox Billing">
    | Purchase type          |                                  Trial start                                  |                             Conversion / Sub start                             |                      Renewal                     |
    | ---------------------- | :---------------------------------------------------------------------------: | :----------------------------------------------------------------------------: | :----------------------------------------------: |
    | **Subscription only**  |                                       —                                       | `purchase_completed_success`, `subscription_created`, `subscription_activated` | `purchase_renewal_success`, `subscription_cycle` |
    | **Free trial**         | `purchase_completed_success`, `subscription_created`, `subscription_trialing` |  `purchase_completed_success`, `subscription_activated`, `subscription_cycle`  | `purchase_renewal_success`, `subscription_cycle` |
    | **Paid trial**         | `purchase_completed_success`, `subscription_created`, `subscription_trialing` |   `purchase_renewal_success`, `subscription_activated`, `subscription_cycle`   | `purchase_renewal_success`, `subscription_cycle` |
    | **Lifetime (one-off)** |                                       —                                       |                          `purchase_completed_success`                          |                         —                        |
  </Accordion>
</AccordionGroup>

## Cross-domain tracking

Track users across multiple domains, such as your landing page and FunnelFox funnel.

Amplitude uses device IDs to track users across domains. By default, FunnelFox generates device IDs using the `fnlfx_` prefix and profile ID: `fnlfx_{profile_id}`. For cross-domain tracking, you need a consistent device ID across all domains.

To set up cross-domain tracking:

1. Go to [Integrations > Amplitude](https://app.funnelfox.com/integrations/amplitude) in FunnelFox.
2. Toggle on **Cross-domain Device ID tracking**.

<Frame>
  <img src="https://mintcdn.com/funnelfox/_z6a5G1CclWny3nq/assets/cross-domain-tracking.png?fit=max&auto=format&n=_z6a5G1CclWny3nq&q=85&s=29bef8a361014227cde54567138711c5" width="1920" height="879" data-path="assets/cross-domain-tracking.png" />
</Frame>

3. Get the device ID from `amplitude.options.deviceId` on your first domain (e.g., landing page), or use your own custom logic.
4. Pass the device ID to your FunnelFox funnel using the URL parameter `ampDeviceId` or `amp_device_id`.

FunnelFox will use the passed device ID instead of generating a new one. If no device ID is passed, FunnelFox generates a new one automatically.

Learn more about [cross-domain tracking in Amplitude](https://amplitude.com/docs/data/sources/instrument-track-unique-users#set-up-cross-domain-tracking).

## User identification

Amplitude identifies users with:

* **Device ID**: `fnlfx_{profile_id}` - Consistent across sessions
* **User properties**: Email, profile ID, and custom attributes

## Session replay

Session Replay lets you watch real user sessions from your funnels directly inside Amplitude, tied to the same events you’re already tracking.

To enable Session replay:

1. Go to [Integrations > Amplitude](https://app.funnelfox.com/integrations/amplitude) in FunnelFox.
2. Enable the **Session Replay** option.
3. Set the percentage of sessions to replay as **Sample Rate** (from 0% to 100%).

<Frame>
  <img src="https://mintcdn.com/funnelfox/8YvbVoZ-U_hwupaI/assets/amplitude-session-replay.png?fit=max&auto=format&n=8YvbVoZ-U_hwupaI&q=85&s=94eabc80eb7c52a1dc6868246874e7ed" width="1920" height="879" data-path="assets/amplitude-session-replay.png" />
</Frame>

4. Click **Save changes**.

## Testing

To make sure events are tracked as expected:

1. Open your funnel in Preview mode.
2. Go through the entire funnel flow.
3. Simulate subscription management actions using [test cards](/elements/checkout#testing) for your PSP.
