# XV-MY-15

Source: https://xmlvalid.com/rules/XV-MY-15

> The TIN of the supplier and of the buyer is mandatory: cac:PartyIdentification/cbc:ID with schemeID TIN (a general TIN such as EI00000000010 where LHDN allows one); the … has none.

- Level: error
- Rule sets: MyInvois validations of LHDN (Malaysia) MyInvois SDK of 25 September 2026
- Context: `/*/cac:AccountingSupplierParty/cac:Party | /*/cac:AccountingCustomerParty/cac:Party`
- Test: `$tin ne ''`

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