Adapters and protocol contracts
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Adapter selection follows the actual endpoint's protocol, contract and delivery behavior. HTTP, SOAP, OData, SFTP and IDoc do not share identical acknowledgement or retry semantics. Diagnose handshake and protocol errors before changing message mapping.
Visual overview
Explanation
Tutorial outcome
Adapter selection follows the actual endpoint's protocol, contract and delivery behavior. HTTP, SOAP, OData, SFTP and IDoc do not share identical acknowledgement or retry semantics. Diagnose handshake and protocol errors before changing message mapping.
Prerequisites
Complete chapters 1–3 in this module. Use synthetic fixtures or an authorized sandbox.
Worked case — fictional
A synthetic SOAP receiver rejects a request whose XML body looks correct.
Step-by-step investigation
1. Describe
Record endpoint, protocol, expected envelope and authentication requirements.
Expected evidence: The receiver expects SOAP with an agreed operation.
2. Connect
Test name resolution, TLS trust and access using the documented adapter configuration.
Expected evidence: TLS succeeds before body validation begins.
3. Envelope
Compare namespace, operation and relevant protocol headers with the service contract.
Expected evidence: The operation namespace differs in the failing request.
4. Retest
Correct the smallest contract mismatch and test a valid and invalid business request.
Expected evidence: Transport and business errors remain distinguishable.
Try it yourself
Reproduce the synthetic input from the example below in a local fixture or authorized sandbox. Follow each step, record the observed result, and explain any mismatch before continuing. Do not treat the expected evidence as a result observed in your SAP tenant.
Acceptance check
The receiver recognizes the operation, while invalid business data still produces a controlled error.
Common failure to avoid
Do not apply HTTP response assumptions to file or asynchronous IDoc processing.
Self-check
What should guide adapter-specific acknowledgement handling?
Expected reasoning: The actual endpoint and adapter's documented contract.
Edition and release scope
Check the linked SAP documentation for your product, runtime, region and enabled service plan. The worked case is a simulation; these steps were not executed in a customer SAP tenant.
SAP references
References checked 2026-10-30. SAP material supports the named concepts; the case, fixture and acceptance checks are original ERPClimb teaching material. No SAP tenant execution or certification is claimed.
[SAP Help — Cloud Integration](https://help.sap.com/docs/cloud-integration) — Adapter, security, monitoring and flow-step documentation; verify the exact adapter
Code example
{"protocol":"SOAP","operation":"CreateOrder","namespace":"urn:training:orders","businessKey":"ORD301"}Adapters and protocol contracts: evidence walkthrough
Simulated training case. These observations are authored fixtures, not screenshots or results from a customer SAP system.
A synthetic SOAP receiver rejects a request whose XML body looks correct.
Before you start
- Complete chapters 1–3 in this module. Use synthetic fixtures or an authorized sandbox.
Check the linked SAP documentation for your product, runtime, region and enabled service plan. The worked case is a simulation; these steps were not executed in a customer SAP tenant.
Describe
Record endpoint, protocol, expected envelope and authentication requirements.
Expected evidence · simulated
The receiver expects SOAP with an agreed operation.
Automatic playback is disabled by your reduced-motion preference. All steps remain available.
Try it, then verify
The receiver recognizes the operation, while invalid business data still produces a controlled error.
Watch for: Do not apply HTTP response assumptions to file or asynchronous IDoc processing.
Open the ERPClimb lesson diagram at full sizeSAP references and release scope
References checked 2026-10-30. The linked SAP material supports the named concepts; the scenario, fixtures and acceptance checks are original ERPClimb teaching material. This is not an SAP certification or a tenant-execution claim.
- SAP Help — Cloud Integration
Adapter, security, monitoring and flow-step documentation; verify the exact adapter
Real project scenario
A synthetic SOAP receiver rejects a request whose XML body looks correct.
Common mistakes
Do not apply HTTP response assumptions to file or asynchronous IDoc processing.
Best practices
The receiver recognizes the operation, while invalid business data still produces a controlled error. Check the linked SAP documentation for your product, runtime, region and enabled service plan. The worked case is a simulation; these steps were not executed in a customer SAP tenant.
Interview angle
What should guide adapter-specific acknowledgement handling? The actual endpoint and adapter's documented contract.
Practice this lesson
Original educational case studies for SAP consultants, not official SAP certification exam questions. Verify product edition and implementation details against the current SAP documentation.
Quick check
0 of 3 questions attempted
1. Which adapter is typically used to exchange IDocs with SAP ERP?
2. A partner sends files via SFTP. Which adapter fits?
3. What should you configure on an HTTP receiver adapter for reliability?
Interview questions
1. How do you choose and configure adapters for an integration?
Answer it in your own words first, then compare.
2. An OData receiver call fails with 403 'CSRF token validation failed'. What do you do?
Answer it in your own words first, then compare.
Check before use: lesson examples are educational, not a guarantee of correctness for your SAP edition or release. Sample code has not been executed on your SAP system. Confirm API availability, syntax, authorizations and business impact in an approved development or test environment.