Hello Everyone, I wanted to provide an update on the issue we were experiencing with the 400 TopicDisallowed error when attempting to send push notifications through APNS to one of our apps. Interestingly, the issue has resolved itself without any changes on our part. Recently, we noticed that the error no longer occurs, and push notifications are being received as intended. This resolution occurred without any modifications to our code or configuration. While we are relieved that the issue is no longer present, we are still unclear about the cause of the problem or the factors that led to its resolution. It's possible that there was a transient issue on the APNS side or some unseen cache effect that was corrected independently. Best regards!