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Error when adding custom Teams app: “You don’t have access to this app”

Raul Rodriguez 0 Reputation points
2025-08-20T18:14:00.4633333+00:00

I created a custom app in Microsoft Teams, but when I try to add it to My Apps I get this error:

“You don’t have access to this app. Due to your org messaging policy, you are not allowed to install this app.”

Here’s what I’ve checked so far:

No custom app permission policies are applied.

The app is enabled and available company-wide.

Org-wide settings allow everyone to install it.

Microsoft Support hasn’t been able to provide a fix so far.

Has anyone else run into this issue? If so, how did you resolve it?

Microsoft Teams | Development
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  1. Teddie-D 3,920 Reputation points Microsoft External Staff Moderator
    2025-08-21T02:11:29.83+00:00

    Hi @Raul Rodriguez 

    Thank you for posting your question in the Microsoft Q&A forum. 
    We're sorry for the inconvenience you're experiencing while trying to add a custom Teams app. We understand how frustrating this must be when you've already tried multiple steps to resolve it without success. 

    To resolve this, please ensure you have enabled the Teams channel in your Azure Bot Service. 
    User's image Reference: [I ran into an issue] Add app · Issue #13145 · MicrosoftDocs/msteams-docs  
    Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

    I hope this information is helpful. 

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

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. 

    1 person found this answer helpful.

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