Thank you for your response. I understand the following point: To summarize this interpretation: Existence of a 410 status merely indicates that the token is no longer valid and should not be used anymore. However, in some cases it is difficult to associate a device token with a user account because the app does not provide a login feature or user accounts. In our case, the following scenario can occur: The user installs the app on a device (IDFV: A, DeviceToken: a) The user uninstalls the app The user reinstalls the app on the same device (IDFV: B, DeviceToken: b) Push notifications are sent using both DeviceToken: a and DeviceToken: b As a result, two push notifications are delivered to the same device If we cannot associate the device token with a user account, what would be the recommended way to prevent duplicate push notifications being delivered to the same device in this situation? I would appreciate your guidance.
Topic:
App & System Services
SubTopic:
Notifications
Tags: