Checking an ABN means confirming the number on an invoice is valid, active and, if GST is charged, registered for GST.
Before you start
- Master Data Specialist - Business Partner Data role (SAP_BR_BUPA_MASTER_SPECIALIST)
- AU:ABN party ID type assigned to the business partner (Assign Party ID Types to Business Partner)
The S/4HANA way
Where to find it: Manage Business Partner Master Data > Identification > Tax Numbers
- Open the business partner and go to Identification > Tax Numbers in edit mode.
- Choose Create. Set Tax Category AU0 and enter the 11-digit ABN as the Tax Number.
- Save.
- Check the ABN on abr.business.gov.au.
Limits in S/4HANA
- The ABN must be 11 digits.
- The help does not describe a check against the ABN register.
Words S/4HANA uses
- Business partner. The single master record for a supplier or customer in S/4HANA.
The Pulsify way
- Forward the supplier's invoice to Pulsify.
- Pulsify checks the ABN against the ABR. It flags an invalid ABN, a missing ABN and an ABN not registered for GST when the invoice charges GST.
- It also flags an ABN that differs from the one on the supplier record in S/4HANA.
- Fix the supplier record or query the supplier, then approve.
Pulsify connects to S/4HANA. We set up the connection for you.
What Pulsify does not do here
- If the ABN lookup is not available, Pulsify flags that it could not validate.
Common mistakes
- Entering an ABN that is not 11 digits.
- Assuming SAP checks the ABN against the register.
More help
- How to check a vendor's ABN in Dynamics 365 Finance
- How to check a supplier's ABN in IFS Cloud
- How to check a vendor's ABN in CloudSuite Industrial
- How to control supplier bank detail changes in S/4HANA
- How to report contractor payments for TPAR from S/4HANA
- How to check GST coding on supplier invoice records in S/4HANA before you lodge your BAS
- All S/4HANA how-to guides
- Pulsify setup guides
Sources
Last checked 2026-10-19. Confidence: confirmed.
Common questions
Where do I enter a supplier's ABN in SAP?
Open the business partner and go to Identification > Tax Numbers in edit mode. Choose Create, set Tax Category AU0 and enter the 11-digit ABN as the Tax Number.
What do I need before I can add it?
The Master Data Specialist - Business Partner Data role (SAP_BR_BUPA_MASTER_SPECIALIST) and the AU:ABN party ID type assigned to the business partner.
Does SAP check the ABN against the ABN register?
The help does not describe a check against the ABN register. The ABN must be 11 digits. Check it on abr.business.gov.au.
What does Pulsify check?
Format, ABR status, GST registration and a match with the supplier record.
Pulsify setup guides
Want this done for you?
Book a call to see how Pulsify handles supplier bills in S/4HANA.