Duplicate Apple APNS push notifications?

Question

We\'ve been using APNS on our app without much incident for some time now, and suddenly our users are reporting receiving the same push notification multiple times.

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Answer 1

Are you able to replicate this issue? You should try and add identifiers to notification if it's not a productions server. Also check if user doesn't have mutiple logins in your database. For eg. With twitter, Facebook and password etc and all have same device token.

Had a similar issue some time back and digging deep I found that these users had multiple editions of beta iOS firmware on their phone beside final version and this was causing apple servers to send same notification to Same device ID mutiple times.

Some blogs have instructions for consumers out there and very litte we could do.