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ERP ⇄ Database

SAP S/4HANA to SQL Server integration — real-time, two-way sync

Keep SAP S/4HANA and SQL Server in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

  • SOC 2 and 6 other compliance frameworks
  • POC with real engineers in minutes

Adopted by fast-scaling companies moving mission-critical data in real time

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Why teams connect SAP S/4HANA and SQL Server

Give your engineers SAP S/4HANA's data in SQL Server: read it with normal queries, write back through the sync, and skip the ERP API entirely.

ERP data sits behind interfaces built for the ERP's own modules, not for your internal systems. Teams that need those records, for reporting services, internal tools, or automations, end up writing integration code against a strict API and maintaining it through every upgrade.

Stacksync mirrors Products / Materials, Billing Documents (Invoices), Deliveries, Journal Entries from SAP S/4HANA into SQL Server and keeps both sides consistent in real time. Whatever SAP S/4HANA is the system of record for, whether financials, operations, people, or procurement, those records become rows your code can query, and changes written in SQL Server sync back into SAP S/4HANA with its validations respected.

Common use cases

  • Consolidate branch or plant databases into a single operational SQL Server hub
  • Bi-directional sync between SQL Server rows and CRM objects so .NET line-of-business apps and sales tools share one dataset
  • Keep supplier records aligned between S/4HANA procurement and third-party spend platforms.
  • Push closed-won CRM opportunities into S/4HANA as sales orders without manual re-keying.

React to ERP changes

Updates in SAP S/4HANA arrive as row changes in SQL Server, so jobs and triggers can respond as the business record changes.

Where SAP S/4HANA is the HR system of record: people data for internal systems

Worker and org records stay current in SQL Server for provisioning, access, and reporting systems that read from the database.

Controlled write-back

Choose exactly which tables and fields may flow from SQL Server back into SAP S/4HANA, keeping the ERP authoritative.

What you can sync between SAP S/4HANA and SQL Server

Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.

SAP S/4HANA objects SQL Server objects
Customer / Supplier Roles Role-specific views of Business Partners mapped to CRM account types. Stored Procedures T-SQL logic that can validate or post-process synced rows.
Production Orders Manufacturing order status surfaced in planning and operations tools. Databases Instance-level databases that scope a sync's reads and writes.
Business Partners Unified customer and supplier master records, the anchor entity for CRM-to-ERP account syncs. Schemas Namespaces (dbo and custom) used to organize synced tables.
Sales Orders Order headers and line items synced to CRMs and fulfillment systems as they are created or amended. Tables The primary sync target; rows map to records in connected systems.
Purchase Orders Procurement documents shared with supplier portals and spend-management tools. Views Read-side projections used as outbound sync sources.
Products / Materials Material master data distributed to e-commerce, PIM, and CRM catalogs. Columns Field-level mapping targets with T-SQL types.
What ships with SAP S/4HANA ⇄ SQL Server

Connect SAP S/4HANA and SQL Server for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every SAP S/4HANA–SQL Server connection.

Real-time

Two-way sync

Changes in SAP S/4HANA or SQL Server instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever SAP S/4HANA or SQL Server data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.

At scale

Event queues

Handle millions of events per minute without losing a single SAP S/4HANA or SQL Server record.

Observability

Monitoring

Track your SAP S/4HANA ⇄ SQL Server sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between SAP S/4HANA and SQL Server.

How the SAP S/4HANA and SQL Server connectors work

SAP S/4HANA

Integration surface
OData REST APIs (v2/v4), with SOAP, BAPI/RFC, and IDoc interfaces on on-premise editions
Authentication
OAuth 2.0 with communication arrangements on cloud editions; basic auth or certificate-based on-premise
Change detection
Polling on change timestamps exposed by the OData services; business events can be emitted through SAP's event infrastructure on cloud editions
Capabilities
read · write
Rate limits
Subject to the platform's API rate limits, which vary by edition and communication arrangement

SQL Server

Integration surface
SQL over the TDS wire protocol (Tabular Data Stream), via ODBC/JDBC/ADO.NET drivers
Authentication
Database credentials entered as a connection string or as parameters (host/user/password) in the Create New Sync page
Change detection
SQL Server Native Change Data Capture (CDC); a DBA runs a one-time setup script with sysadmin privileges to enable CDC and create Stacksync wrapper procedures
Capabilities
read · write · CDC
Rate limits
No API rate limits; throughput depends on instance resources, licensing tier, and connection limits
SQL Server setup guide
How it works

How to connect SAP S/4HANA to SQL Server — three steps, no code

Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.

  1. 01

    Connect your apps

    Authenticate SAP S/4HANA and SQL Server with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    SAP S/4HANA connected
    SQL Server connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the SAP S/4HANA and SQL Server objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · SAP S/4HANA ⇄ SQL Server
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    SAP S/4HANA SQL Server
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

SAP S/4HANA and SQL Server integration FAQ

SECURITY

Security teams love Stacksync

As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.

Learn more about security
SOC 2 type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS

SSO & SCIM

Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.

Alerts

Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.

Secure connection options

Securely connects to your systems with:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 386 integrations available for SAP S/4HANA and SQL Server.

Popular · 8 of 386
All SAP S/4HANA integrations All SQL Server integrations Browse all integrations
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