To link a customer to a head office:
Click Debtors, Customers
Locate and select the customer you wish to link to the head office
Click Edit, Info.
About half way down, just below the Trading Group field, click the magnifying glass icon and select the relevant head office.
Next to this field, select the Use Head Office default Invoice Address check box. When you go to invoice in future, you will see the delivery and invoice addresses are different.