Fully paid Accounts Payable invoices show Open because the discount amount shows in both Discount Taken and Discount Lost. The discount amount should be either in Discount Taken or Discount Lost, but not both.

Change the discount amount on the invoice.

1. Go to Accounts Payable, Tasks, Change Invoices.
2. Enter the information for the paid invoice.
3. Change the Discount field so that it equals Discount Taken + Discount Lost.
4. Save changes to the invoice.

A fully paid invoice appears on the Open Invoice Register (Difference in Discount Offered and Discount Lost or Discount Taken)

AP fully paid invoice still has an Open status after recording a payment and taking a partial discount