Inbound and Outbound Communication
A Communication System in SAP BTP is a configuration object that represents an external system you want to connect to, created and managed via the Communication Systems app. Developers use it to define the technical details of a remote system — such as SAP S/4HANA Cloud — as part of setting up integration scenarios. It works in conjunction with Communication Arrangements, which bind a communication system to a specific communication scenario and authentication method. Change documents for communication systems can also be reviewed to track configuration history.
Tutorials that teach this
- Tutorial Integrate SAP BTP, ABAP environment and SAP S/4HANA Cloud, public edition using Basic Authentication
- Tutorial Integrate SAP BTP ABAP Environment and SAP S/4HANA Cloud, public edition using the OAuth 2.0 SAML Bearer Assertion Flow
- Tutorial Learn the basic concepts required for the integration of SAP BTP, ABAP environment and SAP S/4HANA Cloud, public edition
Docs explaining this concept
Prerequisites
- Concept Basic Authentication The concept name was not provided, but based on the sources, this appears to relate to **inbound communication authentication** in SAP BTP, ABAP environment. A Communication User is a technical user configured to enable inbound communication, allowing external clients to authenticate and connect to SAP BTP services. Developers use it alongside authentication methods such as [Basic Authentication](https://help.sap.com/docs/btp/sap-business-technology-platform/4e1761cecbdd47f6b93e1dfd9d254281?locale=en-US&state=PRODUCTION&version=Cloud) or OAuth to secure [inbound communication channels](https://help.sap.com/docs/btp/sap-business-technology-platform/7e73616a62e0455dab6574ead2073383?locale=en-US&state=PRODUCTION&version=Cloud). When using Basic Authentication, the client supplies the credentials of the Communication User to gain access to the system.
- Concept Communication Management The concept name is not defined in the provided sources, so a precise definition cannot be grounded solely in the supplied snippets. Based on the sources, these artifacts — such as [Communication Arrangement - Read and Write Integration](https://help.sap.com/docs/btp/sap-business-technology-platform/f7c8929df1234eb6bd221a41ad6feac8?locale=en-US&state=PRODUCTION&version=Cloud) and [Communication System - Read Integration](https://help.sap.com/docs/btp/sap-business-technology-platform/14c9b758d0b345f79ebbad8d3aa8c0e8?locale=en-US&state=PRODUCTION&version=Cloud) — are integration services used in the SAP BTP ABAP environment to read and manage communication systems, users, and arrangements. Developers use them to configure and monitor inbound and outbound connectivity between SAP BTP and external systems such as SAP S/4HANA Cloud.