From Jewellers.Live Dashboard, navigate to side Navigation bar and click on All Bookings under Advance Booking

From the Bookings list, find the Advance Booking using Booking ID or Customer Name

Against the Booking ID which has to be completed, click on 3 Dot and then click on Complete

Complete Advance Booking pop-up opens up, continue to Save

The Booking ID will be successfully marked Complete and the status will be updated to Completed