# BR-GA-5

Source: https://xmlvalid.com/rules/BR-GA-5

> Each Payment Instructions (BG-16) MUST include a Payment Means identifier (NL-GA-04)

- Level: error
- Rule sets: SI-UBL 2.0 G-account rules (NLCIUS, UBL) 1.0.2.13
- Context: `/ubl:Invoice/cac:PaymentMeans`
- Test: `count(cbc:ID) = 1`

Validate a document against these rules: https://xmlvalid.com/validate