Here's the way...
** Set up a "Hash" department and a bogus Hash PLU - Send them down to the master
** At the master, In REG mode, enter a customer account # and hit CUSTOMER ACCOUNT key.
** Enter the amount of the adjustment needed and press the PRICE key
** Enter the hash PLU # and hit the PLU/UPC key
** Tender the transaction using the Charge posting key.
** Repeat the above steps until all customer balances are updated as needed.
**NOTE: None of these changes will be reflected on the PC until *after* the EOD is run.