The MoneyWorks accounting software provides three user defined fields in the transaction window (User 1, User 2 and User 3 field), which allows user to customize the field label according to the business requirement.
For example, you may want to use one of the Transaction User field as a "Permit Number" to record the import permit number in a Purchase Invoice or Payment, or you may consider using one of the Transaction User fields as "Ship Via" in both the Sales Invoice and Purchase Invoice transaction.
The Transaction User field can be renamed from the Document Preferences; once customized, it will show in the transaction window.