Some transactions can't be changed

Regardless of your security preference setting, there are some types of transactions that can't be changed. They are customer payments, employee payments, refund checks and bank deposits of undeposited funds. Also, payments that have been authorized using the MYOB Merchant Account Service can't be changed; they can only be voided or reversed.

To remove the effects of these transactions from your company file, you can either delete them or reverse them. (Deleting transactions and Reversing transactions)

An exception

Information in the Applied Payment Details window can be changed. If a Business Services payment has been authorized, the information can't be changed. (To change applied payment details)

Inventory transactions from an early MYOB product

If you've upgraded your company file from an early MYOB product, item invoices and purchases that contain inventory items and were recorded in the earlier version can't be changed; they can only be reversed.

Also, inventory transactions recorded using an early MYOB product can't be changed, reversed or deleted.