You will get informed of Overbooking/Unmapped Booking via email if you activate their related template and trigger rules.
There is a Default Template known as Admin 3: Overbooking and Admin 6: Unmapped Booking under Inbox -> Templates:
In order for the email to get sent via email, go to Inbox -> Trigger Rules:
1- The Active status should be Yes. If it’s set as No, click on the pencil next to No to change it to Yes.
2- Click on the three dots on the right to Edit.You should click on the Add button to insert the email addresses of Zeevou Users and/or Custom Emails which you want to be informed of Overbooking/Unmapped Booking. Finally, click Save and Close.
Admin 3: Overbooking
Admin 6: Unmapped Booking:
Note: Please Raise a Hand if you wish to make further changes in any of these templates and triggers.