How To Fix /IWBEP/CM_V4_MED220 - Conv. exit cannot be set on dict. based primitive type '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 220

• Message text: Conv. exit cannot be set on dict. based primitive type '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED220 - Conv. exit cannot be set on dict. based primitive type '&1' ?

  The SAP error message /IWBEP/CM_V4_MED220 indicates that there is an issue with the conversion exit for a dictionary-based primitive type in an OData service. This error typically arises when the system is unable to apply a conversion exit to a data type that does not support it.
  Cause:
  
  Unsupported Data Type: The error usually occurs when the OData service is trying to apply a conversion exit to a primitive data type that does not support it. For example, if the data type is a standard type like CHAR, NUMC, or DATS, and the conversion exit is not applicable.
  Incorrect Data Model: The data model defined in the OData service may have incorrect mappings or definitions that lead to this issue.
  Configuration Issues: There may be issues in the configuration of the OData service or the underlying data model in the ABAP backend.
  
  Solution:
  
  Check Data Types: Review the data types defined in your OData service. Ensure that the conversion exits are only applied to compatible data types. If a conversion exit is not needed, you may need to remove it from the data model.
  Adjust OData Model: If the OData model is incorrectly defined, you may need to adjust the model to ensure that the primitive types are correctly mapped without unsupported conversion exits.
  Review Conversion Exits: If you are using custom conversion exits, ensure that they are correctly implemented and applicable to the data types being used.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for additional error messages or logs that can provide more context on the issue.
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance on the data types and conversion exits relevant to your version of SAP.
  
  Related Information:
  
  OData Services: Understanding how OData services work in SAP and the role of data types and conversion exits is crucial.
  ABAP Dictionary: Familiarize yourself with the ABAP Dictionary and how data types are defined and managed.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific environment and configuration.