Forum Discussion
Cannot upload Team custom App. Shows constantly shows UnknownTeamsAppManifestExceptionType error
Hello, Could please someone advise. Cannot upload a custom App. The same app was successfully uploaded in December 2024. Now UnknownTeamsAppManifestExceptionType is shown. Thanks!
Meghana-MSFT
Microsoft
MicrosoftHi Kiryl22 - Please validate your app package here and check for any errors - https://dev.teams.microsoft.com/validation.
If issue still persists, please share your app package with us at microsoftteamsdev@microsoft.com.
