When matching/manually entering customer part payment, I see option to Pay in full which nicely takes full invoice value as payment received but it should also ensure that amount entered is not more than the payment received!! It gives an error later that payment entered is more than the payment recieved an then forces us to manually calculate the difference!!

It can be much nicer if automatically enters:
full invoice value or
amount of payment left to be adjusted
(whichever is more)!!