There may be times when you need to create an invoice with a total of $0.00—for example, when issuing a complimentary fuel or service charge. X-1 makes this simple, but it’s important to use the correct settings to avoid errors.
Key steps to remember
- Check your invoice fields - Before processing, make sure the highlighted fields on your invoice are filled out correctly and match the requirements for a $0 invoice. 
 
- Use the COMP payment method - The COMP method is used exclusively for $0 complimentary invoices. 
- If you try to select a different payment method (such as Cash or Credit Card), the system will stop you and display this error message: - “This transaction cannot be processed with the payment method selected.” 
 
- Finalize your invoice - Once the COMP payment method is applied, the invoice will process normally and automatically move to Paid status. 
 
✅ That’s it! Processing a $0 invoice is quick and straightforward when the COMP method is used correctly.


