When the invoice is printed, it indicates that the account used for this invoice is not correct.
Causes
- You are trying to print an invoice that has a supplier account instead of a customer
- The used account is not included in the customer group
Solutions
- Check the customer group settings in the Account2 menu -> Customers -> Settings
- See also setting up the customer account and configuring the customer settings
- Use a customer account in the registration line (Debit, Credit or CC3 account)