If you have access to the Lookup Editor screen in Back-office, you will be able to create a new Cost+Plus Category.
Cost+Plus Categories = Customers
STEPS:
1. In Advantage Back-office, click the left sidebar menu.
2. Open the System module.
3. Click on Lookup Editor
4. Click on the Filter button in the navigation bar:
5. Type "cost" into the search field:
6. Press "Enter" on your keyboard.
7. Select Cost+Plus Categories.
8. Click on the insert button at the bottom of the screen:
This will add another blank field to the list of Cost+Plus Categories:
9. Type the Cost+Plus Category description in the Description field.
10. Select the Enabled option from the Active drop-down field.
11. Press "Tab" on your keyboard.
12. Click on the Save button in the navigation bar: