Update Live Activity
/messages/live_activity/update
Use this endpoint to update and end Live Activities displayed by your iOS app. This endpoint requires additional setup.
After you register a Live Activity, you can pass a JSON payload to update your Apple Push Notification service (APNs). See Apple’s documentation on updating your Live Activity with push notification payloads for more information.
If content-available isn’t set, the default Apple Push Notification service (APNs) priority is 10. If content-available is set, this priority is 5. Refer to Apple push object for more details.

If you start an activity remotely with /messages/live_activity/start, wait at least 5 minutes before you send the first /messages/live_activity/update request for that same activity_id. This delay gives Braze and APNs time to register the new Live Activity and its token mapping. If you send the first update too soon, that update may not apply to the activity.
Endpoint reference
This reference is generated from the OpenAPI specification for this endpoint. To run the endpoint, copy the generated cURL example and send it from your terminal or Postman. You can also download the raw OpenAPI spec for this page at /docs/assets/api/openapi/messaging_live_activity_update.yaml. Use this spec to validate that your requests include the correct parameters, fields, and structure before you send them. To learn how, see Use OpenAPI schemas for request validation.