I have a supplier, Who gives us 3 Invoice for 3 different Projects (Tracking Code).
But When we pay for 1 invoice ( Over payment, example- He gives us Purchase invoice 100 USD for Invoice No-1. But we give him 150 USD overpayment )
It should overpaid figure in this invoice.
But, unfortunately, this overpayment amount goes to other invoice without any notice.
Tracking codes don’t apply to the receivable part of the invoice, they’re just used to divide p&l accounts.
That out of the way, could you share the edit screen for that particular receipt so we can take a closer look?
I recommend you search the guides for Overpaid. 