# BR-KSA-66

Source: https://xmlvalid.com/rules/BR-KSA-66

> Seller postal code (BT-38) must be 5 digits.

- Level: warning
- Rule sets: ZATCA e-invoicing rules (Saudi Arabia) SDK 3.4.6
- Context: `cac:AccountingSupplierParty/cac:Party/cac:PostalAddress`
- Test: `exists(cbc:PostalZone) and matches(cbc:PostalZone, '^[0-9]{5}$')`

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