How To Fix /IWBEP/CM_V4_MED171 - Conv. exit cannot be set on prop. '&1': entity type '&2' is dict.-based

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 171

• Message text: Conv. exit cannot be set on prop. '&1': entity type '&2' is dict.-based

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED171 - Conv. exit cannot be set on prop. '&1': entity type '&2' is dict.-based ?

  The SAP error message /IWBEP/CM_V4_MED171 indicates that there is an issue with the conversion exit for a property in an entity type that is dictionary-based. This typically occurs in the context of OData services in SAP Gateway, where the system is trying to apply a conversion exit to a property that is not compatible with it.
  Cause:
  
  Dictionary-Based Entity Type: The entity type in question is defined in the Data Dictionary (DDIC) and is likely using a standard data type that does not support conversion exits.
  Incompatible Property: The property for which the conversion exit is being set may not be suitable for conversion, either because it is a complex type or because it is defined in a way that does not allow for conversion exits.
  Configuration Issues: There may be misconfigurations in the OData service or the underlying data model that lead to this error.
  
  Solution:
  
  Check Property Definition: Review the definition of the property in the entity type. Ensure that it is defined correctly and that it is compatible with the intended conversion exit.
  Remove Conversion Exit: If the property is dictionary-based and does not require a conversion exit, consider removing the conversion exit from the property definition in the OData service.
  Adjust Data Model: If necessary, adjust the data model to use a different data type that supports conversion exits, or redefine the property in a way that is compatible.
  Regenerate OData Service: After making changes, regenerate the OData service to ensure that the changes take effect.
  Check for Updates: Ensure that your SAP system is up to date with the latest support packages and notes, as there may be fixes or enhancements related to this issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to OData services and conversion exits for any known issues or additional guidance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAP documentation on OData services and data model definitions for best practices and guidelines.
  
  By following these steps, you should be able to resolve the error message and ensure that your OData service functions correctly.