When you make a payment in the Vendor Payments window, the vendor invoice and credit memo invoice cannot both equal zero. A positive amount settingis required to clear accounts payable.
To enter a vendor credit
In > Manage > Vendor Invoices, enter the vendor credit as a vendor invoice with a negative invoice amount.
Be sure to do the following:
In the Manage Vendor Invoices window, in the Amount field, enter
the credit amount as a negative number, such as -100.00.
In the Cost Amount column, enter the credit amount as a negative number.
In the Account field, enter
the account associated with the transaction.
Click Save. The vendor credit appears as a negative vendor invoice in the Vendor Payments window.
To apply a vendor credit
In > Manage > Vendor Payments, apply the credit to an invoice.