Why are my Segments based on events from a third-party platform (like Amplitude) empty, even though I can see the events in Pushwoosh?

If your event-based Segments are not populating with users, it is typically because Pushwoosh cannot associate the incoming events with a specific user or device in your application's database. For the integration to work correctly, two conditions must be met:

1. Consistent User Identification: The UserID you assign to a user within your application via the Pushwoosh SDK must be the same identifier that is sent with the event from your third-party platform. If your app does not assign a UserID to a device in Pushwoosh, or if the UserID sent with the event does not match any user in your Pushwoosh database, the event cannot be linked to a user profile.

2. Device ID in Event Payload: The event data sent from your third-party platform to Pushwoosh must include the device_id property. The value of this property must be the user's Pushwoosh Hardware ID (HWID). This ensures that the event is correctly attributed to the specific device that triggered it.

Example of a correct event payload:

{
  "app_id": "YOUR_APP_ID",
  "event_name": "Subscription Cancelled",
  "created_at": "2023-10-26 10:00:00.000000",
  "properties": {
    "device_id": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
    "backendId": "12345678",
    "isTrial": "true"
  }
}

Example of an incorrect payload (missing device_id):

{
  "app_id": "YOUR_APP_ID",
  "event_name": "Pro: bought",
  "created_at": "2023-10-26 10:05:00.000000",
  "properties": {
    "backendUserID": "9876543",
    "period": "year"
  }
}

To resolve this issue, please check your integration and ensure that:

• Your application correctly sets the UserID for users in the Pushwoosh SDK.
• Your third-party platform is configured to send the device_id (with the Pushwoosh HWID as its value) in the properties of each event.