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How's the url for apps in MyApps Portal configured for custom Teams apps?

Ingmar Shidqi 21 Reputation points
2025-12-03T05:07:07.7566667+00:00

Hi, I work for a company that develop custom Microsoft Teams apps.

Recently, one of our end user is complaining that they cannot access our app from MyApps page.

I want to report our issues but I'm not sure exactly where to raise it.
Here are our problems:

  1. When clicking to open the app, there will be an authentication flow triggered. However, on some of our app this flow failed with this error

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This is a reproduction using our test application, but If I were to guest this is because the authentication is using the app's id in the manifest instead of the app registration id. On some of our apps these two ids have a different value, and we cant change them anymore. What's the best course of action and where should I report this issue?

  1. After a successful authentication, the user is redirected to the url in the developer.websiteUrl part of the teams app manifest. This is an issue because that's not where we are hosting the app. Is there any place where we can configure the redirection of our apps in MyApps Portal?

Thank you for the help

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
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  1. Kha-N 5,295 Reputation points Microsoft External Staff Moderator
    2025-12-03T07:13:50.65+00:00

    Hi @IngmarShidqi,

    Welcome to Microsoft Q&A, and thank you very much for reaching out to us.

    Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.

    Based on your description, the issue seems more related to the app registration rather than the application configuration, as it appears to have only started recently and only affects certain apps. Please correct me if I’m wrong.

    Could you confirm whether all end users are experiencing this issue with the affected app, or only some? Additionally, is the app you mentioned a bot application?

    For your first question, I recommend that you or your admin raise a support ticket through the Azure portal so a support engineer can review your app registration manifest first. To do this, you or your admin can go to Azure Portal, click the question mark (?) icon and enter your issue details. Once done, scroll down and select Contact Support > Create Support Request. Note that you or your admin would need to check if your tenant support plans have technical support included.

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    Additionally, you or your admin can report your issue via Microsoft 365 Admin Portal > Service Health > Report an Issue.

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    Regarding your second question, from my research, my Apps uses the Homepage URL defined in the Enterprise Application or App Registration within Microsoft Entra ID. The developer.websiteUrl (and the tab websiteUrl) in the Teams app manifest only affects behavior inside Teams, for example, the “Go to website” button, not My Apps portal.

    As I check, you can update your custom application Homepage URL by navigating to:

    Microsoft Entra Admin Center > App registrations > Your app > Properties > Homepage URL.

    Screenshot of the Branding & properties page for a registered app with the Home Page URL field highlighted.

    For more detailed guidance, please refer to the official Microsoft documentation here.

    Apologies that we need to redirect you for further assistance. As a Microsoft Q&A moderator, I don’t have access to your specific configuration and my testing environment is limited, so I can only assist based on available documentation and research.

    I hope this help.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".     

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