0041·Invoice number is empty

What this means

Where a reference is expected — notably on notes, and on scenarios that carry a document reference — it cannot be blank.

Why it happens

• Number generation runs at print time rather than at finalisation.
• A draft was submitted before a number was assigned.
• The number field was mapped from the wrong internal column.

How to fix it

1. 1Assign the number at finalisation, before submission.
2. 2Never submit a draft document.

Related errors

• 0088Invoice number format is not accepted
• 0026Invoice reference number is required for a debit note