Unit is not a UN/ECE code (BR-CL-23)

Meaning

Under EN 16931, units of measure (BT-130, BT-150) must be codes from UN/ECE Recommendation 20 and 21, e.g. H87 for piece. The XRechnung rules lower another code to a warning, so the KoSIT validator does not reject it.

Possible causes

How to fix it

Example from the test bench: Unit of measure “Stk” instead of a UN/ECE code

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