How To Fix /IWBEP/CM_V4_MED154 - Precision value invalid on return of operation '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 154

• Message text: Precision value invalid on return of operation '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED154 - Precision value invalid on return of operation '&1' ?

  The SAP error message /IWBEP/CM_V4_MED154 Precision value invalid on return of operation '&1' typically occurs in the context of OData services when there is an issue with the precision of a numeric value being returned from an operation. This can happen in various scenarios, such as when the precision defined in the OData service does not match the precision of the data being returned from the backend system.
  Cause:
  
  Mismatch in Precision: The precision defined in the OData model for a numeric field does not match the precision of the actual data being returned from the database or backend service.
  Data Type Issues: The data type of the field in the backend may not be compatible with the expected data type in the OData service.
  Configuration Errors: There may be configuration issues in the OData service definition or the underlying data model.
  
  Solution:
  
  
  Check OData Service Definition:
  
  Review the OData service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Ensure that the precision and scale defined for numeric fields in the OData model match the precision and scale of the corresponding fields in the database.
  
  
  
  Adjust Data Types:
  
  If the backend data type is different from what is expected in the OData service, consider adjusting the data type or modifying the OData model to accommodate the backend data.
  
  
  
  Modify Backend Logic:
  
  If the backend logic is returning values with higher precision than expected, you may need to round or truncate these values before they are sent to the OData service.
  
  
  
  Regenerate the OData Service:
  
  After making changes to the data model or service definition, regenerate the OData service and activate it to ensure that the changes take effect.
  
  
  
  Testing:
  
  Test the OData service after making the changes to ensure that the error is resolved and that the data is being returned correctly.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  OData Documentation: Review the official SAP documentation on OData services for best practices and guidelines on defining data types and precision.
  Debugging: Use transaction codes like /IWBEP/ERROR_LOG to check for additional error details and logs that may provide more context on the issue.
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWBEP/CM_V4_MED154 error in your SAP OData service.