BillQuick allows you to edit payments after they have been entered into the system. Note that this feature is NOT available in the versions earlier than BillQuick 2012.
1. Click Billing menu > Receive Payments > Payments to open the Payment screen.
2. Select View by: Project mode.
3. Using the History dropdown on the top, select the payment you want to edit.
4. Click the Edit button and make the necessary changes to the payment. E.g., add a reference number to it.
5. Click Save.
Note: For payments that have already been transferred to MYOB or QuickBooks, you will have to make a similar change in your accounting software manually to keep payments in line.