How to credit a Credit Card in Masterpiece for a Return?
Go to File, New Return, find the Transaction you want to give a return on, enter the Quantity Returned (Qty Ret), go to the Payments tab, tab over to the field for Pay Type and select the type of credit card they paid with in the original sale, for example Visa, tab over to the authoration field until MP prompts you to process credit card now, say yes, it should give an authorization number, click on Save on the toolbar.