My customer does not always pay the full amount.  This is a known problem that we track to make sure it doesn’t get too expensive.  For example the invoice may be $50, but they only pay $48.  Sage locks the invoice for editing so it’s difficult to adjust after the payment is received and we don’t make a decision about whether or not we write the money off or dispute the payment for additional funds. 

How can I best handle the $2 remain on the invoice that prevents it from being marked as “Paid”?

Thanks,

Bryan