The referenced e-Invoice reference number can be provided in the BillingReference element. You can reference the original invoice number or the Inland Revenue Board of Malaysia (IRBM) number.

This is used in documents that use the following codes:

Credit note (02)
Debit note (03)
Refund note (04)

Elements

Original e-Invoice reference number can be provided in the billing reference group. You can reference the specific e-invoice in 2 ways:

Element	Description
`Invoice/BillingReference/InvoiceDocumentReference/ID`	A reference to original invoice number.
`Invoice/BillingReference/InvoiceDocumentReference/UUID`	A reference to the IRBM, a unique identifier of the original invoice. This is generated when the original invoice is successfully submitted to the Malaysian Tax Authority.

Example

Here is an example of both types of reference:

<ubl:Invoice>
	<!-- Code omitted for clarity -->
	<cac:BillingReference>
		<cac:InvoiceDocumentReference >
			<cbc:ID>INV12345</cbc:ID>
			<cbc:UUID>IRBM_1234_5555_99</cbc:UUID>
		</cac:InvoiceDocumentReference >
	</cac:BillingReference>
	<!-- Code omitted for clarity -->
</ubl:Invoice>