How To Fix /IWBEP/CM_V4_MED159 - Scale value not possible on return of operation '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 159

• Message text: Scale value not possible 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_MED159 - Scale value not possible on return of operation '&1' ?

  The SAP error message /IWBEP/CM_V4_MED159 Scale value not possible on return of operation '&1' typically occurs in the context of OData services when there is an issue with the scale of a numeric value being returned from an operation. This error is often related to the data type definitions in the OData service and how they are mapped to the underlying database fields.
  Cause:
  
  Data Type Mismatch: The scale of the numeric value being returned does not match the expected scale defined in the OData service metadata. For example, if the OData service expects a decimal with a scale of 2, but the value being returned has a scale of 3, this error can occur.
  Incorrect Mapping: There may be an issue with how the fields in the database are mapped to the OData service. If the database field allows for a higher scale than what is defined in the OData service, this can lead to the error.
  Data Integrity Issues: If the data in the database has been modified or is inconsistent with the expected format, it can lead to this error when the OData service tries to return the data.
  
  Solution:
  
  Check OData Service Metadata: Review the metadata of the OData service to ensure that the scale and precision of the numeric fields are correctly defined. You can access the metadata by appending $metadata to the OData service URL.
  Adjust Data Types: If necessary, adjust the data types in the OData service definition to match the scale of the values being returned from the database. This may involve modifying the service implementation or the underlying data model.
  Data Validation: Validate the data in the database to ensure that it conforms to the expected scale and precision. If there are discrepancies, you may need to clean or update the data.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for additional error details that may provide more context on the issue. This can help identify the specific operation that is causing the error.
  Consult Documentation: Refer to SAP documentation or community forums for any known issues or updates related to the specific version of SAP you are using.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message or related keywords in the SAP Support Portal.
  OData Service Development: Familiarize yourself with OData service development best practices, especially regarding data types and mappings.
  SAP Community: Engage with the SAP Community for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.