RESOLUTION:
1.Login to ODME dashboard
2. Open your Plan which contains "Interrupted or failed mailboxes
3. Select the Migrate tab
4. Place a check in the checkboxes to the left of the mailboxes to be restarted
5. Click the Restart Selected button
Notes:
- Individual restart is enabled only for failed/interrupted mailboxes.
For completed (and all other) mailboxes you can simply select the "Start All" button
- Other option is to create a new PLAN, add that mailbox(s) and migrate it.