I have an Invoice where the customer payed three times.
The balance of this customer is now 499,10 EUR.
If I try to enter the next payment 49,00 EUR, I got an error-message:
payment amount may not exceed the invoice amount.
If I enter 49,00 or 50 EUR same message appear. But If I enter 123,00 EUR, IP accept the payment.
In payment overview I be able to change it to the right Value via "Options -> Edit" .
See Video: http://screencast-o-matic.com/watch/cDenq31XGr4