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1. Navigate to Site administration > Microsoft Teams > Totara app installation.
2. Confirm that all checks for enabled features have been passed or skipped.
3. Download the manifest file.
4. Navigate to https://admin.teams.microsoft.com/, then Teams apps > Manage apps.
5. Click Upload, then Select a file. Select the manifest file downloaded in step 3, then confirm. 
6. If your manifest fails to be uploaded, you can try to validate it with App Validator - https://dev.teams.microsoft.com/appvalidation.html

Updating an existing app

If you are updating your app or making changes to the app name, description, icon, or adding or making changes to the language packs/strings, you will need to download and re-upload the manifest file. When you are creating a new manifest file you need to ensure that you update the app version number in the semver format, e.g. 1.0.0 to 1.0.1.

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