Solution : https://service.sap.com/sap/support/notes/73699 (SAP Service marketplace login required)
Key words :
additional key words ssrv, country-specific field checks, vehicle country indicator, vat registration numbers, indicator 'miscellaneous data', check routine, check routines, advance corrections, eu_tax_number_check, prerequisites
Related Notes :
511357 | Validation of VAT registration number at the mobile client |
306529 | ABN: Posting to a ONE-TIME account |
201753 | ABN: Australian business number |