Could not get Goggle OAuth 2.0 token for service account while checking authorization for migrating mailbox (4350200)

When migrating from Google Workspace with On Demand Migration for Email (ODME), and checking the authorization for the admin account to access the users mailboxes the following error occurs:

Could not get Goggle OAuth 2.0 token for service account while checking authorization for migrating mailbox 'user@domain.com'

This issue occurs when the ODME Google OAuth token has lost authorization. The ODME Google OAuth token can be re-authorized using the following steps:

1. Login to the ODME Portal.
2. Click on an existing ODME migration plan that is being used to migrate from Google Workspace.
3. On the Connections tab (tab 1), under the Source Connections section copy the complete contents of both the Client Name and API Scopes boxes into a new Notepad document.
   
4. Click on the "Manage Google API Client Access" button above. If it doesn't navigate to the API Controls, click this link. 
   

   https://admin.google.com/u/0/ac/owl/domainwidedelegation

5. Click 'Add new' to add a new API client.
6. Paste the existing ODME Client ID from Notepad into the 'Client ID' field.
7. Check the box to 'Overwrite existing Client ID'.
8. Paste in the entire block of API scopes from Notepad into the single 'OAuth Scopes (comma-delimited)' line in the window.
   
9. Click Authorize.
10. Re-run any failed migrations in ODME.