Inter-unit deposit in error

We have several deposits which were entered with payments to two different business units.  These deposits are in error as we do not have inter-unit functionality  ( inter-unit billing, inter-unit accounting, etc) set up.  Is there a way to get these deposits processed without having to un-post the completed payments, deleting the deposit and re-entering the payments on two separate deposits.  There are quite a few deposits in error.  The business process has been fixed and we should not receive these errors in the future.