When creating an invoice in FE NXT, before saving the invoice, it's necessary to click the "Add distribution" button to finalize and add the new distribution line to the invoice record. This allows the system to validate the information in the new distribution prior to adding it to the invoice.

1. Verify the information on the new distribution line is correct
2. Click "Add distribution" at the bottom
3. Continue with additional lines of distribution, or if complete, click Save at the bottom to save the invoice

Picture of an invoice with the add distribution button