The external document location is not an absolute URL

`External document location` (BT-124) must be an absolute URL carrying a valid scheme.

Only the issuer holds this value: Factlint reports it and never fabricates it. Test your invoice to find out whether it is affected.

Why this error happens

A relative URL, or one without a scheme (`www.example.test/annex.pdf`), only resolves from the system that produced it. At the recipient it leads nowhere — and the referenced document is lost with nothing to say so.

How to fix it

Write the full URL, scheme included. Factlint does not prefix it: choosing between `http` and `https` on the issuer's behalf means deciding whether the link is encrypted.

XML correction example

BEFORE (invalid)

<ram:URIID>www.exemple.test/piece.pdf</ram:URIID>

AFTER (compliant)

<ram:URIID>https://www.exemple.test/piece.pdf</ram:URIID>