An invoice can be linked to only one sales order. For customers who you send electronic invoices to, set the Create invoice option to 'New invoice for every order'.
Every invoice must have a known corresponding sales order.
Every invoice line must have a known part.
The quantity on the invoice lines must be greater than '0'.
All data required by the SCSN standard must have been filled in.
Tip: If any of the above message checks fails, a message will be displayed, and you will be able to jump straight to the cause by clicking the Check button in the message. Click this button to open the Electronic messages form and view the message and any corresponding messages.