Manual Installation
Users can also perform a manual installation of their app using the ZIP file available when creating or editing an app. This can be useful for testing purposes, or if you explicitly do not want your app to be available in the Teams app catalog for all users.
Downloading ZIP
You can download your Teams app as a ZIP file by clicking the Download ZIP button.
These files will contain:
Color Icon - PNG file for your chosen color icon image
Outline Icon - PNG file for your chosen outline icon image
Manifest - Generated manifest JSON file containing the details of your app
Uploading ZIP in Teams
Once you have the ZIP file of your app, you can move to Microsoft Teams to upload and install it.
From within Microsoft Teams:
Select Apps from the left sidebar
Choose Manage Your Apps
Click Upload an app
Select Upload a custom app
Choose your ZIP file
Your custom Teams app should now be successfully uploaded and installed within your Microsoft Teams client.
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