Available in Sage 50 Premium Accounting and higher.
                                                 Assign a Department to a Customer
                                            
                                            To assign a department in your company to a customer:
- Open the customer's record. How?
- In the Home window, click Customers & Sales on the navigation pane.
 - In the Tasks pane, right-click the Customers icon and select Modify Customer from the menu.
 - Select a customer from the list and click OK.
 
 - On the Address tab, select a Department from the list.
 - Click Save and Close.