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karamem0's avatar
karamem0
Brass Contributor
Apr 10, 2022
Solved

Mgmt.AppCatalog.LOBApp.Upload.BadRequest.UnknownTeamsAppManifestExceptionType error has occured

I cannot upload custom app into organization because Mgmt.AppCatalog.LOBApp.Upload.BadRequest.UnknownTeamsAppManifestExceptionType error has occured.

What I tried:

  • I tried to upload same app to other tenant but got same error.
  • I tried to upload other app but got same error.

What happened?

50 Replies

  • TonyStark645's avatar
    TonyStark645
    Copper Contributor

    karamem0We are also facing this issue when uploading the custom APP.
    It was working fine till last Friday (8/April) ! Looks like some new changes in MSFT is breaking the existing feature.

  • Same here, we get UnknownTeamsAppManifestExceptionType when trying to upload a custom app.
    The same app worked about a month ago.
  • Facing this issue while uploading the manifest.

    appPackage call is failing with UnknownTeamsAppManifestExceptionType
  • JanGo85's avatar
    JanGo85
    Copper Contributor
    Having the same issue, when trying to upload an app to Teams admin center. Also trying to publish an app directly in Teams for preview does not work.
  • MrAdam1130's avatar
    MrAdam1130
    Copper Contributor
    I'm also getting the same error trying to upload a custom app for testing.
    It's passing the app validator perfectly: https://dev.teams.microsoft.com/appvalidation.html
  • nrogoff-avanade's avatar
    nrogoff-avanade
    Copper Contributor
    One of my clients has just reported having this error when uploading an app on 10-April-2022 too. Not seen this error before.

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