Once you have set up your integrated billing. you may want to preview the details of your upcoming billing batch. In GymMaster. you can do this by navigating to Report & Till > Billing > View Schedule.
The report will show all the charges the system has marked for collection. Any charges that are different from the usual scheduled amount will be shown in red. If you want to change the owing amounts, you can select the member's name and edit their accounts tab. To sort by amount, bill date, or name, simply select the arrow icon next to the column of your choice.