How To Fix RAP_RUNTIME009 - Changing the response when delegating to selector is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: RAP_RUNTIME - RAP Runtime Messages

• Message number: 009

• Message text: Changing the response when delegating to selector is not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RAP_RUNTIME009 - Changing the response when delegating to selector is not allowed ?

  The SAP error message RAP_RUNTIME009 ("Changing the response when delegating to selector is not allowed") typically occurs in the context of the SAP RAP (Rapid Application Programming) model, particularly when working with behavior definitions and service implementations.
  
  Cause:
  This error arises when there is an attempt to modify the response of a delegated operation in a way that is not permitted. In the RAP model, when you delegate a call to a selector (a behavior definition that selects a specific implementation), the response structure is expected to remain consistent with what the selector provides. If you try to change or manipulate the response after delegating to the selector, the framework raises this error to maintain integrity and consistency.
  
  Solution:
  To resolve this error, you should ensure that:
  
  
  Consistent Response Structure: Make sure that the response structure you are trying to return after the delegation matches the expected structure defined in the selector. Avoid any modifications