Forum Discussion
Forms tab disappearing from Teams
I've added a forms tab to my Team and it loads, then vanishes before my eyes. I've added other apps and they are fine and stay. The form is functional and in use. I'm not sure what the issue could be...
penwoman I have a similar issue with a custom app. It can be added as a tab, and opens successfully, then just disappears after a few seconds.
If anyone's finds a solution please post here 
.
- I have managed to resolve my issue.
Please note my issue was similar to the Forms issue reported here, but for a Custom App instead:
After some experimentation, I found that when a Teams Admin user added the App as tab, it would stay in place, and the App would appear as an installed app under ...>Manage Team>Apps.
If a normal user added the App as a tab, the tab would appear for a few seconds, then disappear. Also, the app would not appear in under ...>Manage Team>Apps.
It turns out my app manifest included a request for permissions that a normal user cannot grant: "applicationPermissions": [
"TeamsActivity.Send.Group"
]
When I removed this entry, and uploaded the new manifest, everything was fine i.e. normal users could add the app as a tab.
