# Unable to receive notification

**URL:** <https://community.sendbird.com/t/unable-to-receive-notification/1283>\
**Category:** .Net\
**Tags:** dotnet\
**Created:** [November 16, 2020, 5:11am UTC](https://community.sendbird.com/t/unable-to-receive-notification/1283 "2020-11-16T05:11:42Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![karthik\_the\_raj](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/karthik_the_raj/32/670_2.png) [@karthik\_the\_raj](https://community.sendbird.com/u/karthik_the_raj)\
**Post date:** [November 16, 2020, 5:11am UTC](https://community.sendbird.com/t/unable-to-receive-notification/1283/1 "2020-11-16T05:11:43Z")

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i am using sendbird chat sdk on xamarin forms. everything seems ok , but i am unable to receive notification of message .

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**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [November 30, 2020, 4:45am UTC](https://community.sendbird.com/t/unable-to-receive-notification/1283/2 "2020-11-30T04:45:21Z")

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@karthik_the_raj Could you check that you upload push certificate through our dashboard? and if so, make sure you upload valid push certificate. Thanks!

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**Author:** ![karthik\_the\_raj](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/karthik_the_raj/32/670_2.png) [@karthik\_the\_raj](https://community.sendbird.com/u/karthik_the_raj)\
**Post date:** [December 16, 2020, 5:53am UTC](https://community.sendbird.com/t/unable-to-receive-notification/1283/3 "2020-12-16T05:53:00Z")

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hi woo,ya i upload the push certificate , now able to receive notification for android , but for ios not able to receive

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**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [December 17, 2020, 2:35pm UTC](https://community.sendbird.com/t/unable-to-receive-notification/1283/4 "2020-12-17T14:35:02Z")

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did you upload push certificate that was generated from apple? or do you use firebase?

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<div class="post-metadata">

**Author:** ![karthik\_the\_raj](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/karthik_the_raj/32/670_2.png) [@karthik\_the\_raj](https://community.sendbird.com/u/karthik_the_raj)\
**Post date:** [December 17, 2020, 3:25pm UTC](https://community.sendbird.com/t/unable-to-receive-notification/1283/5 "2020-12-17T15:25:54Z")

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i upload certificate generated from apple

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**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [December 18, 2020, 5:15am UTC](https://community.sendbird.com/t/unable-to-receive-notification/1283/6 "2020-12-18T05:15:06Z")

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Could you confirm that your push notification works on ios App for normal push? and did you upload apple push notification for both development / production? or separately? Also make sure you call `registerDevicePushToken:` method on `application(_:didRegisterForRemoteNotificationsWithDeviceToken:)` in your appDelegate.

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**Author:** ![karthik\_the\_raj](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/karthik_the_raj/32/670_2.png) [@karthik\_the\_raj](https://community.sendbird.com/u/karthik_the_raj)\
**Post date:** [December 18, 2020, 7:30am UTC](https://community.sendbird.com/t/unable-to-receive-notification/1283/7 "2020-12-18T07:30:13Z")

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i am using sendbird chat on xamarin forms , normal notification from firebase is working both on android and ios , but sendbird chat notification , when user goes offlien it not working , i added required certificates for both android and ios. for ios i added only developement .can you help me when to call RegisterAPNSPushTokenForCurrentUser and RegisterFCMPushTokenForCurrentUser in xamarin forms or should i use native developemt for push notification?