I have been integrating my application with QuickBooks using the SDK QBFC. I have invoices working successfully. The issue I have come across and am struggling to find recources for is with credits. When sending the request to create an invoice with a negative value I get this message:
"Transaction amount must be positive."
I have tried using using the quantity as a negative and rate hoping it would work out the amount as a negative but then I got this:
"You can't use negative rates on inventory items, use neg quantity instead"
So, I have come to the realization that I need to use the Refunds and Adjustments in QuickBooks and cannot find any examples to follow.