How to resolve the inability to assign Large Meetings license
You may see the error, "Service is temporarily unavailable, please try again later. If the problem continues, please contact RingCentral Support" when using RingCentral Meetings.
This happens when the Large Meetings license is assigned to the wrong User.
Try to assign the license again.
1. Log in to the RingCentral Online account.
2. Go to Admin Portal > Billing > Meetings > Large Meeting tab.
3. Click Unassign next to the license to assign.
4. You will get the confirmation, "Are you sure you want to unassign Large Meeting 100 License?" Click Yes.
5. Click Assign.
6. Select the User from the list, then click Assign.
RingCentral Meetings - Large Meetings | Purchase and Assign a License