If the payment was made any time before the current day, a refund must be done in order to reverse that transaction.
Step 1: Navigate to the “Transaction Entry” screen
Step 2: Click on “Payment/Adjustments”
Step 3: Click on “Adjustment Types”
Step 4: Select the appropriate type (i.e. Refund - Credit Card)
Step 5: Select a payment to refund
Step 6: Click “Apply“
Step 7: If approved the refund will be saved to the ledger