# XV-MY-13

Source: https://xmlvalid.com/rules/XV-MY-13

> The certificate's organization identifier should be the TIN of the supplier or the buyer: MyInvois rejects a document whose signer's TIN is not the submitter's (DS311). This one is ….

- Level: warning
- Rule sets: MyInvois validations of LHDN (Malaysia) MyInvois SDK of 25 September 2026
- Context: `/*`
- Test: `$oi = '' or $oi = $tins`

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