Need to create a alert to receive report for client group capacity quota limit

Client Groups Exceeding Assigned License Limits

Custom Rules / Client Group License Usage Check

This alert notifies the administrator when a client computer group exceeds the limit on the amount of data the client computer group can back up. This alert is disabled by default. When a limit is set, this alert is automatically enabled. For information on setting limits on client computer groups, see Setting a Licensing Limit for Tenants.