How To Fix SAI_MAPPING202 - Java class &1 does not implement the required interface

SAP Error Message - Details

• Message type: E = Error

• Message class: SAI_MAPPING - Mapping

• Message number: 202

• Message text: Java class &1 does not implement the required interface

What causes this issue?

The class &V1& (&V2&, &V3&, &V4&) does not implement the interface
com.sap.aii.mapping.api.StreamTransformation. A Java mapping must
implement this interface.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Correct the Java mapping.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SAI_MAPPING202 - Java class &1 does not implement the required interface ?

  The SAP error message SAI_MAPPING202 indicates that a Java class specified in your SAP system does not implement a required interface. This error typically occurs in the context of SAP PI/PO (Process Integration/Process Orchestration) when there is an issue with the mapping of messages between different systems.
  Cause:
  
  Missing Interface Implementation: The Java class that is supposed to perform the mapping does not implement the required interface. This could be due to a coding error or an incomplete implementation.
  Incorrect Class Reference: The mapping might be referencing the wrong Java class or an outdated version of the class that does not implement the necessary methods.
  Deployment Issues: The Java class may not have been properly deployed to the SAP system, or there may be issues with the classpath.
  Version Mismatch: There could be a version mismatch between the mapping configuration and the Java class, leading to the interface not being recognized.
  
  Solution:
  
  Check Class Implementation: Verify that the Java class specified in the error message implements the required interface. You can do this by reviewing the source code of the class.
  Update Mapping Configuration: If the class has been updated or changed, ensure that the mapping configuration in SAP PI/PO is pointing to the correct version of the class.
  Re-deploy the Java Class: If there are deployment issues, re-deploy the Java class to ensure it is available in the SAP system.
  Check Classpath: Ensure that the classpath is correctly set up and that the Java class is accessible to the SAP system.
  Test the Mapping: After making changes, test the mapping to ensure that it works as expected and that the error no longer occurs.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for details on how to implement Java classes for mappings and the required interfaces.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  Debugging: Use debugging tools available in SAP PI/PO to trace the execution of the mapping and identify where the error occurs.
  
  By following these steps, you should be able to resolve the SAI_MAPPING202 error and ensure that your Java class correctly implements the required interface for mapping in SAP.