UBL-SR-31
EN 16931-1 layer: en16931
Checked against Peppol BIS Billing 3.0 2026.5
What does UBL-SR-31 mean? Document level charge reason shall occur maximum once
Why did my invoice fail UBL-SR-31?
A document-level charge (BG-21) may state one Charge reason text (BT-104), explaining why the extra amount is added (e.g. freight, packaging). EN 16931 allows at most one reason text per charge, so cbc:AllowanceChargeReason must not repeat within a single document-level charge (cbc:ChargeIndicator = true). A coded reason (BT-105) may also be present.
Official rule text
Document level charge reason shall occur maximum once
Common causes
- Two cbc:AllowanceChargeReason elements in the same document-level charge block.
- A template concatenates additional descriptive text as a second reason element.
- Reason repeated per language within one charge.
How do I fix it?
Within each document-level charge keep one reason: <cbc:AllowanceChargeReason>Freight</cbc:AllowanceChargeReason> and remove any duplicate.
Related rules
UBL-SR-01 · UBL-SR-02 · UBL-SR-03 · UBL-SR-04 · UBL-SR-05 · UBL-SR-06 · UBL-SR-07 · UBL-SR-08
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