How To Fix RAP_CMP_CHECKS070 - Return type changed for function import &1 of service &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: RAP_CMP_CHECKS - RAP Compatibility Checks Messages

• Message number: 070

• Message text: Return type changed for function import &1 of service &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RAP_CMP_CHECKS070 - Return type changed for function import &1 of service &2. ?

  The SAP error message RAP_CMP_CHECKS070 indicates that there is a mismatch in the return type of a function import in a service definition within the context of the RAP (Rapid Application Programming) model. This typically occurs when the return type of a function import has been changed in the service definition, but the corresponding implementation or usage has not been updated accordingly.
  Cause:
  
  Change in Return Type: The return type of a function import has been modified in the service definition (e.g., from a single entity to a collection or vice versa).
  Inconsistent Implementation: The implementation of the function import does not match the new return type defined in the service.
  Service Versioning: If the service has been versioned, the client consuming the service may still be using an older version that does not align with the current definition.
  
  Solution:
  
  Check Service Definition: Review the service definition in the SAP system to confirm the expected return type of the function import.
  Update Implementation: Ensure that the implementation of the function import matches the new return type. This may involve modifying the code to return the correct type of data.
  Regenerate Service: If changes have been made, regenerate the service to ensure that all references are updated.
  Check Client Code: If there are client applications consuming the service, ensure that they are updated to handle the new return type.
  Test the Changes: After making the necessary updates, test the function import to ensure that it works as expected without errors.
  
  Related Information:
  
  RAP Model: The RAP model is designed to simplify the development of business applications in SAP S/4HANA. Understanding the principles of RAP can help in troubleshooting issues related to service definitions.
  Service Consumption: If you are consuming the service in an application (e.g., Fiori app), ensure that the application is compatible with the changes made to the service.
  SAP Notes and Documentation: Check SAP Notes and the official SAP documentation for any known issues or additional guidance related to the RAP model and service definitions.
  
  By following these steps, you should be able to resolve the RAP_CMP_CHECKS070 error and ensure that your function import is correctly defined and implemented.