Peppol BIS Billing 3.0 · rule
UBL-CR-203
What does UBL-CR-203 mean? A UBL invoice should not include the AccountingCustomerParty AdditionalAccountID
Why did my invoice fail UBL-CR-203?
This EN 16931 rule warns when the UBL element cac:AccountingCustomerParty/cbc:AdditionalAccountID is present: the invoice should not include an additional account ID on the customer party wrapper. EN 16931 provides exactly one buyer identifier (BT-46, under cac:Party/cac:PartyIdentification) plus the electronic address (BT-49); extra wrapper-level account IDs are outside the core model. The element is not forbidden by UBL itself, but it lies outside the EN 16931 core invoice model, so remove it to keep the invoice fully conformant and interoperable.
Official rule text
A UBL invoice should not include the AccountingCustomerParty AdditionalAccountID
Common causes
- Multiple internal customer numbers exported into every available ID element
- Legacy mapping from UBL 2.0 or a national format
- Schema-driven generator populating all CustomerParty children
Related rules
UBL-CR-001 · UBL-CR-002 · UBL-CR-003 · UBL-CR-004 · UBL-CR-005 · UBL-CR-006 · UBL-CR-007 · UBL-CR-008
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