The client customer module maintains customer details prior to becoming a debtor.
The customer details are maintained by the salesman who may not have access to the debtors module.
A salesman uses the customer file to records details such as visit details, catalogue details etc.
A customer record must exist before a debtor record can be established.
If the user has access to the debtor system then the customer details are copied to a new debtors master record.
The customer address details must be the physical address for the salesman to visit (not the PO box).