SAP ERP integration
Validate EU, UK, Swiss and Norwegian VAT numbers before they enter your finance, procurement or sales workflow — and keep audit-ready proof with every result.
EU VIES · UK HMRC · Switzerland UID · Norway Brønnøysundregistrene
No SAP add-on required. Choose Make, REST API or a tailored enterprise rollout.
SAP event — vendor, customer, order or invoice is created.
VIESAC checks VIES, HMRC, UID or Brønnøysundregistrene.
SAP receives the status, reference and certificate URL.
Three ways to connect
Use no-code automation, build directly on the API, or let us scope an enterprise implementation with your SAP team.
Fastest route
Trigger validation from SAP events through Make scenarios. Map VAT, business partner and invoice fields without writing middleware.
Most flexible
Call VIESAC directly from SAP BTP, Integration Suite, CPI, ABAP or your existing middleware and own the complete orchestration.
For complex landscapes
For multi-system SAP estates, high-volume validation or bespoke controls, we can scope the data flow and implementation with your architects.
Designed for operational records
Pass only the details needed for the validation, then retain the VIESAC reference and downloadable evidence on the business record or in your document archive.
valid, not_valid, pending or errorBeyond a one-off check
Whether you use Make or call the API yourself, the same building blocks cover validation, retrieval and evidence export.
Create audit
Validate a VAT number (country + number). Returns reference number, status (valid / invalid / pending), and certificate URLs when valid.
List audits
Get your audits with filters: date range, country, VAT, order or invoice number. Paginate and iterate in scenarios.
Get audit
Fetch one audit by reference number. Full details: company name, address, certificate URLs, status.
PDF certificate
Get the official PDF certificate for a valid audit. Optional locale: en, de, fr. Save to Drive, Dropbox, or attach to invoices.
XML certificate
Get a normalized, client-safe XML verification record for a valid audit. Suitable for archiving or feeding into ERP/accounting systems.
Account data
Check your plan, monthly limit, and remaining audits. Use at the start of a scenario to validate connection.
SAP-ready building blocks
VIESAC is deliberately transport-agnostic: your SAP team decides where validation happens and which record stores the result.
SAP S/4HANA and S/4HANA Cloud, SAP ECC / R/3, Business One, Business ByDesign, Ariba and SAP MDG.
SAP BTP, Integration Suite / Cloud Integration (CPI), Process Integration / Orchestration (PI/PO), Make or existing middleware.
VIESAC uses REST and webhooks; your SAP integration layer can bridge OData, IDoc, RFC, BAPI, SOAP or events.
ABAP, Fiori, SAPUI5 and custom business partner, order and invoice flows.
Common SAP scenarios
Start with one document flow, then reuse the same mapping and audit pattern across teams and countries.
Validate a supplier or customer VAT number when a master record is created or changed.
Check customer VAT before an order, delivery or invoice reaches the next step.
Attach proof to vendor onboarding, purchase orders or incoming invoice review.
Recheck selected partner records and keep a traceable history of the outcome.
Enterprise VAT compliance
Tell us where VAT validation should run, which SAP records need proof, and what your rollout needs. We will help you choose the right route.