Connect SAP ECC-R/3 and Rest API

Connecting SAP ECC-R/3 and a REST API for a company could make it possible to exchange data between SAP’s enterprise resource planning modules and external applications or services. This connection could support automated data transfer, such as sharing financial transactions, inventory updates, or customer information, depending on business requirements and technical capabilities.

You can build this integration on the System2System platform. We design the connection between SAP ECC-R/3 and Rest API around the way you work — not as an off-the-shelf connector, but to fit your systems.

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Why connect SAP ECC-R/3 and Rest API?

A company operating both SAP ECC-R/3 and a system accessible via a REST API could benefit significantly from enabling data exchange between the two. The primary motivation for connecting these systems would be to reduce manual data entry and minimize the risk of human error. Without such a connection, staff might need to enter the same information into both systems, which can be time-consuming and prone to mistakes. This process can also result in records drifting apart over time, with discrepancies arising between the two systems as updates are made in one but not the other. As a result, decisions might be based on outdated or inconsistent data, undermining operational efficiency and accuracy. The types of data that could be exchanged between SAP ECC-R/3 and a system using a REST API depend on the business processes involved, but commonly include master data such as customers, vendors, and products, as well as transactional data like sales orders, purchase orders, inventory movements, and financial postings. The ability to synchronize this information could help ensure that both systems reflect the same reality, supporting more reliable reporting and streamlined workflows. The specific data that can be exchanged, and the methods used, would depend on what each system exposes through its API and must be determined on a case-by-case basis.

How System2System builds an integration

Connectors

We connect to each system through the interface it offers — an API, a database, a file exchange or a webhook — and handle authentication, rate limits and retries.

Mapping

Fields rarely line up one to one. We map and transform the data so both systems receive it in the shape they expect.

Workflow

We define what triggers an exchange, in which direction data flows and which system takes precedence when the two disagree.

Monitoring

Every exchange is logged. Failures are flagged and can be replayed, so nothing disappears without anyone noticing.

What can actually be exchanged?

That depends on what SAP ECC-R/3 and Rest API make available through their APIs, on the licences and modules in use, and on the version each system runs. Which records are synchronised, in which direction and how often, is something we determine together before any work starts.

We are happy to look at your specific situation and tell you what is feasible — including when the answer is that it is not.