Seamless integration of external systems into SAP S/4HANA with the SAP Integration Suite
- andreas.halusa
- Jun 3
- 2 min read
Updated: Jun 10
What It's About

Seamless connection: The SAP Integration Suite securely connects third-party, cloud and legacy systems with SAP S/4HANA.

Typical use cases: legacy system integration, cloud-to-on-premise communication and master data synchronization.

Added value: faster implementation, lower costs, central monitoring - ready for the future.

The digital transformation is increasingly forcing companies to efficiently network heterogeneous system landscapes. When introducing SAP S/4HANA in particular, the question quickly arises: how can existing third-party systems be integrated smoothly?
The answer is increasingly: with the SAP Integration Suite.
Why system integration is crucial today
Companies rarely work in an “SAP-only” world. Whether CRM systems such as Salesforce, e-commerce platforms such as Shopify or specialized legacy systems - the reality is hybrid. Missing or faulty integration can lead to data inconsistencies, media disruptions and additional manual effort.
As cross-platform middleware, the SAP Integration Suite offers the solution here: standardized, scalable and secure integration scenarios - on-premise, in the cloud or hybrid.
The SAP Integration Suite at a glance
The SAP Integration Suite is a cloud-based service on the SAP Business Technology Platform (BTP). It offers a variety of tools and services, including:
Cloud Integration (CI): For process and data integration in real time
API Management: For the secure provision and management of interfaces
Open Connectors: For the connection of over 160 third-party providers (e.g. Salesforce, HubSpot)
Integration Advisor: Supports the mapping and semantic harmonization of message formats
Cloud Connector: enables a secure connection between on-premise systems (e.g. SAP ERP, databases, backend services) and SAP BTP

Typical application scenarios in the SAP S/4HANA world
Integration of legacy systems: Many companies use older in-house developments or industry solutions. With the SAP Integration Suite, these systems can be securely connected via REST/SOAP APIs, OData or JDBC. Transformations and mappings are carried out centrally in Cloud Integration.
Cloud-to-on-premise scenarios: Example: A cloud-based HR system (such as Workday) needs to exchange data with SAP S/4HANA. The SAP Integration Suite not only handles communication, but also authentication, payload transformation and monitoring.
Replication & master data synchronization: In many cases, a consistent material master or business partner master across systems is critical to success. This is where the Integration Suite scores with events, mapping tools and time-controlled synchronization.
Benefits for your company
Future-proof: SAP is pursuing a clear cloud-first strategy with the Integration Suite
Time-to-value: ready-made content packages for many common scenarios
Cost efficiency: individual interface development no longer necessary
Central monitoring: all interfaces can be monitored in one place
Scalability: From small integrations to company-wide landscapes
Best practices from dataXcellence projects
At dataXcellence, we support companies in successfully integrating systems as part of SAP S/4HANA implementations - from analyzing existing landscapes to architecture consulting and implementation with the SAP Integration Suite.
Our experience shows: An early integration strategy, standardized interfaces and a central governance model are the keys to success.
Conclusion
The SAP Integration Suite is the backbone of modern system landscapes around SAP S/4HANA. It enables companies to integrate in an agile, secure and future-proof manner - regardless of technology, location or provider.
Are you planning an S/4HANA migration or facing a complex integration task? Talk to our experts. Together we will find the right solution - from vision to implementation.
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