The monthly cashier's accounting subjects, cash subjects and bank deposit subjects should be consistent with the general ledger, so that the accounts are consistent. General ledger does not accept IOUs. Generally IOUs cannot be accounted for, and can only be accounted for with official invoices. You should ask the boss to change the IOUs into official invoices, but I remind you that you should first write down the number of each IOUs on a piece of paper and ask the boss to change them into tickets being checked. You can't give him the debit note that has been recorded, because the debit note is here. If he takes a dollar less, you take a dollar less. You must wait for them to change the official invoice into an IOU. If you want to get the iou first, there is another way to write you a payment voucher, which is equivalent to him taking so much money from you. Write down the cash and bank deposit accounts on the prepared vouchers first every month. When making vouchers, write down a few pieces on the vouchers, then stamp them and give the voucher scores of each batch to the general ledger. The general ledger accountant is very responsible for his work, so he is just in case.
You should let your boss know that IOUs are not allowed to keep accounts, and he won't use IOUs next time.