iOS 18 Sending Duplicate Push Notifications

Question

Created Jul ’25

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When sending a single push notification to iOS 18 devices users receive the same notification multiple times. This issue appears specific to iOS 18 and was not observed in previous iOS versions

Our server logs confirm each notification is sent only once. Notification payloads include proper apns-id values for identification and no network issues detected on our side

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Answer 1

Engineer OP

Apple

Jul ’25

Please share the apns-ids of a few sample notifications that were received multiple times. Please include:

apns-id
exact time of the push request (include Time Zone) sent
exact times of each of the multiple pushes received
method you are determining notifications being received multiple times. Is it user anecdote, or do you have a logging system in place on the app. How have you implemented that.

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