If members and/or guests bypass payment and send reimbursement at a later date, admins are able to add payment information to the open order to ensure the order is closed.
Go to Orders and Transactions > Orders & Invoices.
Use the Search box to find the appropriate order.
Click on the Payment action button for the open order.
A window will appear where you can select your payment method from a drop down list (credit card, check, cash, or mark as complimentary.) Select the appropriate option and enter the required information.
Save your changes.
The Balance will now show as $0.00, and the order status will be noted as "Closed."