How To Fix /IWBEP/CM_V4_MED175 - Amount conv. class not allowed on property '&1': Unit property '&2' set

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 175

• Message text: Amount conv. class not allowed on property '&1': Unit property '&2' set

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED175 - Amount conv. class not allowed on property '&1': Unit property '&2' set ?

  The SAP error message /IWBEP/CM_V4_MED175 typically occurs in the context of OData services when there is an issue with the data model, specifically related to the handling of units of measure (UoM) in the service. The error message indicates that there is a problem with the amount conversion class for a property that has a unit property set.
  Cause:
  
  
  Unit Property Configuration: The property in question (&1) is defined with a unit property (&2), but the amount conversion class is not allowed for that property. This usually happens when the data model is not correctly configured to handle the unit of measure for that specific property.
  
  
  Inconsistent Data Model: The data model may have inconsistencies where the property is expected to have a certain type of conversion class, but it is not set up correctly in the backend.
  
  
  OData Service Definition: The OData service definition may not align with the underlying data model, leading to issues when the service tries to process requests involving that property.
  
  
  Solution:
  
  
  Check Data Model Configuration: Review the data model in the backend (e.g., in the ABAP Dictionary) to ensure that the property is correctly defined with the appropriate amount conversion class and unit property.
  
  
  Adjust OData Service Definition: If you are using the SAP Gateway Service Builder (transaction code SEGW), check the entity type and properties to ensure that they are correctly defined. Make sure that the amount conversion class is compatible with the unit property.
  
  
  Update Metadata: After making changes to the data model or OData service definition, regenerate the metadata for the OData service. This can be done in the Service Builder by right-clicking on the service and selecting "Generate Runtime Objects."
  
  
  Test the Service: After making the necessary adjustments, test the OData service to ensure that the error no longer occurs.
  
  
  Consult Documentation: If the issue persists, refer to SAP documentation or community forums for additional guidance on handling unit properties and amount conversion classes in OData services.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context on handling unit properties in OData services.
  OData Documentation: Review the official SAP OData documentation for best practices on defining entity types, properties, and handling units of measure.
  Community Forums: Engage with the SAP Community or other forums where SAP professionals discuss similar issues and solutions.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly with the defined properties.