UBL-SR-59

A Financial Institution Branch shall contain exactly one Payment account identifier (BT-84).

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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
cac:PaymentMeans
Test
not(cac:PayeeFinancialAccount) or count(cac:PayeeFinancialAccount/cbc:ID) = 1

Checked with EN 16931 Invoice (UBL), EN 16931 Credit Note (UBL), Croatia eRačun Invoice (UBL), Croatia eRačun Credit Note (UBL)