communication delivery_error ai_generated true

FCM/APNs: notification delivery failed

ID: communication/notification-delivery-failure

Also available as: JSON · Markdown
78%Fix Rate
82%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
any active — — —

Root Cause

Push notification not delivered to device.

generic

Workarounds

  1. 88% success Remove invalid/expired device tokens from database
  2. 90% success Check FCM/APNs credentials and certificate expiry

Dead Ends

Common approaches that don't work:

  1. Retry to unregistered tokens forever 82% fail

    Wastes resources, may get blocked

  2. Send to all tokens without filtering 78% fail

    Includes invalid tokens, increases error rate