For the given use case, where SAP Application Interface Framework (AIF) in SAP S/4HANA is used for message monitoring, error handling, and payload modifications while adhering to clean core principles, the adapters need to support structured message exchange and integration. * SOAP Adapter (A): * SOAP is widely supported by SAP AIF for synchronous and asynchronous message communication. * It allows structured message payloads and is commonly used for integrating SAP systems, especially in scenarios requiring reliable message transmission. * IDOC Adapter (C): * IDocs (Intermediate Documents) are a core SAP technology for asynchronous message exchange between SAP systems. * SAP AIF natively supports IDoc monitoring and modification, making it a suitable choice for clean core integration. * Why Not ODATA (B) or HTTP (D)? * ODATA: Primarily used for RESTful communication, but it is less suitable for managing structured payloads in AIF-based error handling. * HTTP: Used for lightweight API integration but lacks robust support for structured messages and error processing in AIF. References: * SAP AIF Documentation * SAP Integration Suite Adapters Overview