--- title: SAP HANA API Integration on Truto slug: saphana category: Default canonical: "https://truto.one/integrations/detail/saphana/" --- # SAP HANA API Integration on Truto **Category:** Default **Status:** Beta ## How it works 1. **Link your customer's SAP HANA account.** Use Truto's frontend SDK; we handle every OAuth and API key flow so you don't need to create the OAuth app. 2. **Authentication is automatic.** Truto refreshes tokens, stores credentials securely, and injects them into every API request. 3. **Call Truto's API to reach SAP HANA.** The Proxy API is a 1-to-1 mapping of the SAP HANA API. 4. **Get a unified response format.** Every response uses a single shape, with cursor-based pagination and data in the `result` field. ## Use cases - **Sync master data from SAP HANA into your SaaS product** — Pull Business Partners, Material Masters, G/L Accounts, and Cost Centers from your customers' SAP environments so your application always reflects their source of truth — without asking them to export CSVs or maintain flat files. - **Write back transactional documents to SAP HANA** — When your SaaS completes a workflow — like approving an expense, closing a work order, or fulfilling an order — push the resulting Journal Entry, Supplier Invoice, or Goods Issue directly into SAP so your customers avoid double data entry and reconciliation headaches. - **Power real-time inventory and order visibility** — SaaS companies in supply chain, e-commerce, or field service need live stock levels and order statuses from SAP HANA. Offering this integration lets your users make decisions based on real-time ERP data rather than stale overnight extracts. - **Automate procure-to-pay workflows across SAP and your platform** — Spend management and AP automation products can read vendor data and chart of accounts from SAP, then write back completed invoices or payment postings — closing the loop between your specialized workflow and the customer's general ledger. - **React to SAP business events in real time** — Instead of polling for changes, listen for SAP events like new Sales Orders or inventory movements via SAP Event Mesh, enabling your SaaS to trigger downstream automations the moment something happens in your customer's ERP. ## What you can build - **Automatic vendor and customer directory sync** — Continuously import Business Partner records from SAP HANA so your app's contact lists, vendor directories, or customer databases stay current without manual uploads. - **Real-time product catalog and inventory display** — Pull Material Master data and plant-level stock quantities from SAP HANA to power storefront availability, configure-price-quote flows, or warehouse dashboards inside your product. - **One-click journal entry and invoice write-back** — Let users push approved expenses, invoices, or accruals from your platform directly into SAP's General Ledger as properly coded financial documents. - **Sales order creation from external workflows** — Convert completed carts, signed quotes, or approved requisitions in your SaaS into SAP Sales Orders via API, triggering downstream fulfillment in your customer's warehouse. - **Cross-plant inventory deduction on field events** — When a technician logs parts usage or a warehouse confirms a shipment in your app, automatically post a Goods Issue in SAP HANA to keep inventory valuations accurate. - **G/L account and cost center picker** — Embed a native SAP-aware dropdown in your UI that lets end users select the correct General Ledger account or Cost Center when categorizing transactions, eliminating coding errors. ## FAQs ### How does authentication work for SAP HANA integrations? SAP S/4HANA typically supports OAuth 2.0 (via SAP Authorization Server), SAML-based SSO, and Basic Authentication for service-to-service calls. For cloud editions, OAuth 2.0 with client credentials is standard. Truto manages the auth lifecycle so your team doesn't need to handle token refresh or credential storage. ### What API protocols does SAP HANA expose? SAP S/4HANA primarily exposes OData v2 and v4 REST APIs through SAP Gateway. The SAP Cloud Application Programming (CAP) model also surfaces RESTful endpoints. BAPI and RFC interfaces exist for on-premise scenarios but are less common in modern integrations. ### Are there rate limits or throttling on SAP APIs? SAP Cloud APIs enforce rate limits that vary by tenant configuration and API type. On-premise deployments depend on the customer's SAP Gateway capacity. Truto can handle retry logic and backoff strategies so your integration remains resilient under throttling. ### Is this integration available today on Truto? SAP HANA is built on request. Truto works with you to scope the specific SAP API endpoints, business objects, and workflows your product needs, then builds and maintains the connector. No generic tools or Unified API mappings exist out of the box — the integration is tailored to your use case. ### Can I read and write custom fields or extension fields from SAP? Yes. SAP S/4HANA supports custom fields via the Key User Extensibility framework, and these fields are exposed through OData APIs. Truto can map these extension fields into your integration so you can read and write customer-specific data. ### How fresh is the data when reading from SAP HANA? Because SAP HANA is an in-memory database with no separate analytics layer, API reads reflect real-time transactional data. There is no replication lag. Data freshness in your app depends on your polling interval or whether you use event-driven patterns via SAP Event Mesh.