BR-FXEXT-BR-54-1
Each Item attribute (BG-32) shall contain an Item attribute name (BT-160) or an Item attribute code (BT-X-11), or both.
error: the document is invalid
What the rule checks
As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.
Context
//ram:ApplicableProductCharacteristic
Test
exists(ram:Description) or exists(ram:TypeCode)
Checked with France Factur-X EXTENDED, Factur-X / ZUGFeRD EXTENDED