# Sign in with apple missing App name: shows null instead of app name

**URL:** <https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424>\
**Category:** Get Help\
**Tags:** sign-in-with-apple, apple-sign-in, ios, auth0\
**Created:** [June 10, 2020, 5:46am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424 "2020-06-10T05:46:58Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![kiran.gouda](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/kiran.gouda/32/13267_2.png) [@kiran.gouda](https://community.auth0.com/u/kiran.gouda)\
**Post date:** [June 10, 2020, 5:46am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/1 "2020-06-10T05:46:58Z")

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I am working on a xamarin application.  
I am trying to `Sign in with Apple` using `Auth0` .  
But the permission message shows my app name as `null`

This is the permission message.

> Create an account for `null` using your Apple ID “[myAppleId@email.com](mailto:myAppleId@email.com)”
> 
> ![image](https://global.discourse-cdn.com/auth0/original/3X/f/7/f794c19f18a5e01255b68e3ba7196af53f7599a4.png)

-I am not getting this issue during development but while testing in real time devices, i am facing this issue.

Can anyone help me solving this issue.

Thank you

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**Author:** ![konrad.sopala](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/konrad.sopala/32/13516_2.png) [@konrad.sopala](https://community.auth0.com/u/konrad.sopala)\
**Post date:** [June 10, 2020, 5:00pm UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/2 "2020-06-10T17:00:42Z")

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Hey there!

Can you share with us what quickstart or doc from ours have you followed to achieve that? Thanks!

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**Author:** ![kiran.gouda](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/kiran.gouda/32/13267_2.png) [@kiran.gouda](https://community.auth0.com/u/kiran.gouda)\
**Post date:** [June 11, 2020, 5:01am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/3 "2020-06-11T05:01:08Z")

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Similar to the process given here:

> **[Easy Authentication in Xamarin Apps with Auth0](https://auth0.com/blog/easy-authentication-xamarin-auth0/)**
>
> Learn how to add authentication to iOS and Android apps with Xamarin and Auth0.

using Auth0.OidcClient

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**Author:** ![konrad.sopala](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/konrad.sopala/32/13516_2.png) [@konrad.sopala](https://community.auth0.com/u/konrad.sopala)\
**Post date:** [June 12, 2020, 8:08am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/4 "2020-06-12T08:08:04Z")

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I was rather asking about the Sign In With Apple part. What doc / quickstart have you used for that?

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**Author:** ![kiran.gouda](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/kiran.gouda/32/13267_2.png) [@kiran.gouda](https://community.auth0.com/u/kiran.gouda)\
**Post date:** [June 17, 2020, 11:20am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/5 "2020-06-17T11:20:39Z")

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We have followed a similar approach:

> **[Auth0 Xamarin SDK Quickstarts: Login](https://auth0.com/docs/quickstart/native/xamarin)**
>
> This tutorial demonstrates how to add user login to a Xamarin application using Auth0.

Could you please update me on this

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**Author:** ![konrad.sopala](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/konrad.sopala/32/13516_2.png) [@konrad.sopala](https://community.auth0.com/u/konrad.sopala)\
**Post date:** [June 17, 2020, 11:53am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/6 "2020-06-17T11:53:16Z")

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But it’s not the Sign In With Apple doc / quickstart that I’m constantly asking you about 🙂 It’s general Xamarin SDK quickstart. Haven’t you used any of those?

- [What is Sign In with Apple? Learn About the New Identity Provider](https://auth0.com/blog/what-is-sign-in-with-apple-a-new-identity-provider/)
- [How to Add Sign in with Apple to iOS Apps - Getting Started Guide](https://auth0.com/blog/learn-how-to-implement-sign-in-with-apple-easily/)
- etc.

I’m asking about more detail-oriented sign in with apple docs not xamarin general related. I’m asking this cause I don’t know where actually you find the Sign In With Apple parts in Xamarin quickstart (that’s the main reason)

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**Author:** ![kiran.gouda](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/kiran.gouda/32/13267_2.png) [@kiran.gouda](https://community.auth0.com/u/kiran.gouda)\
**Post date:** [June 17, 2020, 12:24pm UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/7 "2020-06-17T12:24:38Z")

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I switched to below approach but in Xamarin to achieve apple sign in.

> **[How to Add Sign in with Apple to iOS Apps - Getting Started Guide](https://auth0.com/blog/learn-how-to-implement-sign-in-with-apple-easily/)**
>
> Learn how to support Sign in with Apple on iOS and web apps. This can be an easy task if you use the right tools. Check out this tutorial...

But i am not able to get the exchange token from Auth0 after getting the Authorization token from Apple.  
Followed below links for the same:

- [Add Sign In with Apple to Native iOS Apps](https://auth0.com/docs/connections/nativesocial/apple)
- [Add Login Using the Authorization Code Flow](https://auth0.com/docs/flows/guides/auth-code/add-login-auth-code) (used the suggested c# code here)

i am getting this below error in response:  
{“error”:“invalid\_grant”,“error\_description”:“Invalid authorization code”}

Could anyone help me to resolve this issue.

Thank you

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**Author:** ![hoang](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/hoang/32/22759_2.png) [@hoang](https://community.auth0.com/u/hoang)\
**Post date:** [August 20, 2020, 5:36am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/8 "2020-08-20T05:36:49Z")

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I face same issue app name is null, everything else is correct like App icon.

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**Author:** ![hoang](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/hoang/32/22759_2.png) [@hoang](https://community.auth0.com/u/hoang)\
**Post date:** [August 26, 2020, 8:34am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/9 "2020-08-26T08:34:52Z")

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Seems this issue was fixed by Apple with iOS 13.6.1

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<div class="post-metadata">

**Author:** ![konrad.sopala](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/konrad.sopala/32/13516_2.png) [@konrad.sopala](https://community.auth0.com/u/konrad.sopala)\
**Post date:** [August 26, 2020, 9:40am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/10 "2020-08-26T09:40:33Z")

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That’s really good news!

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**Author:** ![system](https://global.discourse-cdn.com/auth0/original/3X/b/5/b560f266932fcce5d57f09a6595bd50518cae3f3.jpeg) [@system](https://community.auth0.com/u/system)\
**Post date:** [September 10, 2020, 9:40am UTC](https://community.auth0.com/t/sign-in-with-apple-missing-app-name-shows-null-instead-of-app-name/44424/11 "2020-09-10T09:40:43Z")

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