MoneyWorks Manual
Names Importing
To view or set the Name import options click the Options button in the Import Field Order window. Note that Mac users can import their Mac Address Book directly using the File>Import>Address Book command.
Update if Exists:
If you set this option, MoneyWorks will update the data for any records whose code matches the code of the record being imported. Only imported fields are updated—default values and Work-it-Out values will be updated only if the Set this field when updating existing records as well option is set — see Update if exists.
If this option is off, then MoneyWorks will report an error if the code for a record being imported matches that of an existing record.
This feature could be used to update customer address lists from an external database.