Problem
When sending push notifications in iOS to a reachable user, the "APNS Client Connection" error occurs.
Explanation
This error can happen for the following reasons:
- The APNS certificate linked to the PEM file on the MoEngage dashboard has expired or been revoked.
- The AuthKey has been revoked on the Apple Developer account.
Solution
Create a new PEM file or AuthKey and upload it on the MoEngage dashboard.