Blocking finding856_HL_ID_INVALIDx12 base

Duplicate or missing 856 HL01 identifier

HL01 values must uniquely identify hierarchy nodes within the transaction.

Fix

Make the source change, then revalidate

Allocate a unique HL01 to every Shipment, Order, Tare, Pack and Item node.

What to inspect

Open the exact location reported by the validator. Confirm the source mapping or warehouse value rather than editing the outbound document as a one-off.

How to prevent recurrence

Add the rejected file as a sanitized regression fixture. Keep the expected finding code stable so mapping changes cannot silently reintroduce it.

Run this rule against your payload

Reviewed 2026-07-16 · Rule pack 2026.07.16 · Current account documentation remains controlling.