How To Fix /IWBEP/CM_V4_MED312 - Scale combination invalid on property '&1' (complex type '&2')

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 312

• Message text: Scale combination invalid on property '&1' (complex type '&2')

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED312 - Scale combination invalid on property '&1' (complex type '&2') ?

  The SAP error message /IWBEP/CM_V4_MED312 Scale combination invalid on property '&1' (complex type '&2') typically occurs in the context of OData services when there is an issue with the data model, specifically related to the scale and precision of numeric properties in a complex type.
  Cause:
  
  Invalid Scale/Precision: The error indicates that the scale combination for a numeric property is invalid. This usually happens when the data being sent or received does not conform to the defined scale and precision in the data model.
  Data Type Mismatch: The property defined in the OData service may have a specific data type (e.g., Decimal, Float) with defined scale and precision, and the incoming or outgoing data does not match these specifications.
  Model Definition Issues: There may be discrepancies in the way the complex type is defined in the OData service metadata versus how it is being used in the application.
  
  Solution:
  
  Check Data Model: Review the definition of the complex type in the OData service. Ensure that the scale and precision of the numeric properties are correctly defined.
  Validate Input Data: Ensure that the data being sent to the OData service adheres to the defined scale and precision. For example, if a property is defined as Decimal(10,2), ensure that the data does not exceed 10 digits in total, with 2 digits after the decimal point.
  Adjust Application Logic: If the application is generating data that does not conform to the expected format, adjust the logic to ensure that it complies with the defined data model.
  Test with Sample Data: Use sample data that is known to conform to the expected scale and precision to test the OData service and identify if the issue persists.
  Check for Updates: Ensure that you are using the latest version of the OData service and that any relevant SAP Notes or patches have been applied.
  
  Related Information:
  
  OData Service Metadata: You can access the metadata of the OData service to review the definitions of complex types and their properties. This can usually be done by appending $metadata to the service URL.
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific error message. SAP frequently releases notes that address common issues encountered in OData services.
  Debugging: If you have access to the backend system, consider debugging the OData service to trace the data flow and identify where the invalid scale combination is being triggered.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.