Reinstall the ShuttleCloud App
Reinstalling the ShuttleCloud email migration app is simple.
1. Login to admin.google.com (you must be a G Suite administrator).
2. Click Marketplace Apps (or More Controls > Marketplace Apps, at the bottom of the page, if Marketplace Apps isn't already on your main console).
3. Click on the ShuttleCloud app.
4. Click the trash icon in the top right of the page, and remove the App.
5. Install the ShuttleCloud email migration app here.
This process will reinstall the App for all users on the G Suite account.