How To Fix /IWBEP/CM_V4_MED251 - Return of function '&1' not primitive type based

/IWBEP/CM_V4_MED251 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 251

• Message text: Return of function '&1' not primitive type based

Self-Explanatory Message

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/IWBEP/CM_V4_MED251 - Details

• The SAP error message /IWBEP/CM_V4_MED251 indicates that there is an issue with the return type of a function in an OData service. Specifically, the error states that the return type of the function is not a primitive type based on the OData V4 specifications. This typically occurs when the function is expected to return a primitive type (like string, integer, etc.), but it is returning a complex type or an unsupported type instead.
  
  Cause:
  
  Return Type Mismatch: The function is defined to return a primitive type, but the actual return type is a complex type or a collection.
  Service Definition Issues: The OData service might be incorrectly defined in the service metadata, leading to this mismatch.
  Implementation Errors: The implementation of the function might not align with the expected return type defined in the service.
  
  
  Solution:
  
  Check Function Definition: Review the function definition in the OData service. Ensure that the return type is correctly defined as