Licensed users scheduling or modifying Zoom meetings longer than 40 minutes in the Outlook plugin received the error message "Your Zoom Basic plan has a 40-minute time limit on meetings with 3 or more participants."
Zoom Plugin for Microsoft Outlook (Outlook plugin)
Zoom has resolved this issue in Outlook plugin version 5.13.10.810. To get this fix, download the latest version of the Outlook plugin from the Download Center.
If you are still experiencing this issue after upgrading, submit a request to Zoom Support.