C_CPI Integration Suite Development Practice Question
An integration developer is building an integration flow in SAP Cloud Integration that must call a SOAP web service exposed by an SAP S/4HANA system. The WSDL defines a request-reply operation and the service requires WS-Security UsernameToken authentication. The developer has imported the WSDL as an external definition and now needs to configure the outbound call. Which adapter type should the developer use to consume this SOAP service?
⚠ Common exam trap
The trap here is assuming any HTTP-based adapter can call a SOAP service just because SOAP runs over HTTP, ignoring that WSDL binding and WS-Security UsernameToken require the dedicated SOAP adapter.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
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SOAP (SOAP 1.x) receiver adapter
Consuming a WSDL-described SOAP service in SAP Cloud Integration requires the SOAP receiver adapter, which natively supports SOAP 1.x/1.2 and WS-Security UsernameToken. Importing the WSDL as an external definition lets the adapter bind to the correct operation and construct the SOAP envelope. Adapters such as OData, HTTP, and IDoc do not understand WSDL operations or WS-Security headers, so they cannot satisfy the authentication and message format requirements of this S/4HANA service.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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SOAP (SOAP 1.x) receiver adapter
Why this is correct
The SOAP receiver adapter in SAP Cloud Integration is purpose-built to consume SOAP 1.x and SOAP 1.2 web services described by a WSDL. It supports WS-Security UsernameToken, X.509 token, and SAML assertions out of the box, and it can reference an imported WSDL-based external definition to generate the request payload. This directly satisfies the S/4HANA SOAP service with UsernameToken authentication.
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OData V2 receiver adapter
Why it's wrong here
The OData V2 receiver adapter is designed for OData services that expose entity sets and use $metadata, not WSDL-described SOAP operations. It cannot process a SOAP envelope or apply WS-Security UsernameToken headers. Pointing it at a SOAP endpoint would fail because the adapter constructs OData-specific HTTP requests, not SOAP XML messages, so it is the wrong choice here.
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IDoc receiver adapter
Why it's wrong here
The IDoc receiver adapter is used to send intermediate documents (IDocs) to SAP systems via tRFC or qRFC, not to consume SOAP web services. It expects IDoc-formatted payloads and SAP connection parameters, not a SOAP envelope. This adapter cannot communicate with a WSDL-described web service endpoint, so it does not meet the requirement of calling the S/4HANA SOAP service.
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HTTP receiver adapter with SOAP action header
Why it's wrong here
The plain HTTP receiver adapter sends raw HTTP requests and does not natively understand WSDL operations, SOAP envelopes, or WS-Security UsernameToken. While technically the SOAP message could be hand-crafted, the adapter provides no WSDL-driven operation binding or WS-Security support. This forces manual XML construction and header handling, making it error-prone and not the intended approach for consuming a WSDL-based SOAP service.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official SAP exam blueprint
This C_CPI practice question is part of Courseiva's free SAP certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the C_CPI exam.