The cashup workflow currently assumes you will 'Bank' all the 'Bankable' cash from a transaction session. However, in some cases, the bank will not accept certain denominations being paid in and so you want the option to record the actual amounts banked and roll forward any surplus to the next bankable session. This is of particular interest to British libraries banking via the Post Office. The Post Office will only accept, for example, £10 worth of 50p coins at a time.. if you have collections £13.50 in 50p coins you will only be allowed to bank £10 worth of them and need to replace the excess £3.50 into the register for banking in the next cashup.