KF-FR-REFERENCE: The buyer reference is missing
This code shows up when an electronic invoice is validated. Here is what it means, why it fires, and what to change in the file.
Why this code appears
The invoice carries no buyer reference (BT-10). It is mandatory only in the public sector, but there it truly is, and it is the leading cause of rejection for invoices sent to French public bodies: Chorus Pro expects the recipient department code there.
How to fix it
Ask your public-sector customer for their service code and commitment number, and put the code in BuyerReference. Between private companies this field stays optional.
Where it happens
This check is ours, not a code from the standard: we do not cover enough of EN 16931 to borrow its numbers, and a misattributed official code would send you to fix the wrong field. It concerns BT-10.