# I lost the csr file but I have the cer for iOS push notification

**URL:** <https://community.thunkable.com/t/i-lost-the-csr-file-but-i-have-the-cer-for-ios-push-notification/4108319>\
**Category:** Publishing\
**Created:** [January 30, 2026, 5:04pm UTC](https://community.thunkable.com/t/i-lost-the-csr-file-but-i-have-the-cer-for-ios-push-notification/4108319 "2026-01-30T17:04:47Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ayunsolutions](https://avatars.discourse-cdn.com/v4/letter/a/dec6dc/32.png) [@ayunsolutions](https://community.thunkable.com/u/ayunsolutions)\
**Post date:** [January 30, 2026, 5:04pm UTC](https://community.thunkable.com/t/i-lost-the-csr-file-but-i-have-the-cer-for-ios-push-notification/4108319/1 "2026-01-30T17:04:47Z")

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Hi,

I have an app published to iOS 2 years ago, now I am trying to add a push notification feature it, while in the process I came to know that I don’t have the _.csr file I have only the_ \*.cer file only

can I regenerate the csr using the cer file ?

thanks in advance

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [January 30, 2026, 5:14pm UTC](https://community.thunkable.com/t/i-lost-the-csr-file-but-i-have-the-cer-for-ios-push-notification/4108319/2 "2026-01-30T17:14:44Z")

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Hi @ayunsolutions  
To get the CSR file for push notifications:

1. Open your Thunkable project
2. Follow the steps to publish iOS
3. Click “Click to download CSR” to get the CSR file  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/9/4/948a1b01d06445a1900ec08990fa5b3e893ac544.png)

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<div class="post-metadata">

**Author:** ![ayunsolutions](https://avatars.discourse-cdn.com/v4/letter/a/dec6dc/32.png) [@ayunsolutions](https://community.thunkable.com/u/ayunsolutions)\
**Post date:** [January 30, 2026, 5:37pm UTC](https://community.thunkable.com/t/i-lost-the-csr-file-but-i-have-the-cer-for-ios-push-notification/4108319/3 "2026-01-30T17:37:18Z")

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thank you @ioannis ,

I will go through it and update you, as last time I published an iOS app was 2 years ago

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<div class="post-metadata">

**Author:** ![ayunsolutions](https://avatars.discourse-cdn.com/v4/letter/a/dec6dc/32.png) [@ayunsolutions](https://community.thunkable.com/u/ayunsolutions)\
**Post date:** [January 30, 2026, 5:41pm UTC](https://community.thunkable.com/t/i-lost-the-csr-file-but-i-have-the-cer-for-ios-push-notification/4108319/4 "2026-01-30T17:41:45Z")

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@ioannis

One thing I noticed, that in [https://developer.apple.com/](https://developer.apple.com/) there is no certificate is there and when checked the profiles in profile section, it is expired and when I edit and save it, it says

> “There are no current certificates on this team matching the provided certificate IDs compatible with IOS\_APP\_STORE profiles“

how bad is that? do I still can release and update to the app on apple store through thunkable ?or I need to create new app?

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<div class="post-metadata">

**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [January 30, 2026, 6:03pm UTC](https://community.thunkable.com/t/i-lost-the-csr-file-but-i-have-the-cer-for-ios-push-notification/4108319/5 "2026-01-30T18:03:33Z")

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@ayunsolutions this is not a big problem. You just need to create a new certificate and provisioning profile and then you will be able to publish an update for your app.