Experiencing Duplicate Notifications Issue Recently By Multiple Users

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Created 6d

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We recently noticed that our app is receiving duplicate notifications, and this is impacting multiple users, and we verified from our server that we are sending the notifications only once

This is a sample payload of the notifications we are sending

{ "aps": { "alert": { "title": "title", "body": "body" }, "category": "test", "mutable-content": 1 }, "navigateTo": "test", "imageUrl": "test" }

Also a user with IOS 17.5.1 reported this issue also

Answered by DTS Engineer in 790093022

While this was a known issue in the earlier versions of iOS 17 that happened under certain conditions, it has long been fixed and we do not expect it to occur in 17.5.1.

If your users who are impacted are not on the latest version of iOS 17, we suggest you ask them to upgraded to the latest available version of iOS.

If you have confirmed that a user with iOS 17.5.1 is indeed having this issue, and you are not conflating a different issue, say, due to their account setup they might be getting multiple notifications or something similar - if you are certain that this particular user on 17.5.1 is being sent a single notification as well while reporting multiple notifications, we would need to investigate this on our end. For that we need some very specific information. Please read https://developer.apple.com/forums/thread/756372 for the pieces of information we need to investigate, and reply back here, and we will investigate.

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Answer 1

mungbeans OP

6d

This has been reported elsewhere on the forum, somebody from Apple replied saying it was a known issue. I think they said it was in iOS 17.2.1 and the fix was to update to 17.3, but maybe I missremember that as you say you've also seen it in 17.5.1

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Answer 2

DTS Engineer OP

Apple

6d

Recommended

While this was a known issue in the earlier versions of iOS 17 that happened under certain conditions, it has long been fixed and we do not expect it to occur in 17.5.1.

If your users who are impacted are not on the latest version of iOS 17, we suggest you ask them to upgraded to the latest available version of iOS.

If you have confirmed that a user with iOS 17.5.1 is indeed having this issue, and you are not conflating a different issue, say, due to their account setup they might be getting multiple notifications or something similar - if you are certain that this particular user on 17.5.1 is being sent a single notification as well while reporting multiple notifications, we would need to investigate this on our end. For that we need some very specific information. Please read https://developer.apple.com/forums/thread/756372 for the pieces of information we need to investigate, and reply back here, and we will investigate.

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