I am attempting to make a payment to a vendor with a balance due. I had made a partial payment on an invoice, now I want to pay the balance, but I am unable to. I get a message that reads I cannot pay more than the max payment, which is listed as 0.00, however, there is still a balance owing.

the topic should actually be in Payables, not receivables, sorry

To fix:

Edit the vendor
On the Transaction tab double click on the invoice
Change the Maximum Payment Amount to equal the Current Amount

You can now pay the balance owed.

To prevent this from happening again:

Edit the Company Profile
ON the System Options Tab - turn on "Set Amt Payable to Inv. Balance"

Thanks Douglas, worked like a charm.