Validating Customers
All customers should be validated periodically to check for errors in their accounts. A good time to do this is just before each billing cycle. To do so:
1. Go to Utilities: Administration: Billing: Customers: Configure.
2. Click Validate all Customers.
3. A report will be generated showing any customer accounts that have errors (e.g., customer has no lists assigned; or no expiration date for credit card).
4. Click Edit to change the customer information.
More
5. Billing
7. Adding, Validating and Syncing Servers
9. Creating Additional Charges
12. Assigning Hosting Plans, Charges and Lists
13. Validating Customers
14. Running Bills
19. Billing Reports
21. Viewing a Customer's History