How To Fix /IWBEP/CM_V4_MED010 - Invalid internal name '&1'; only uppercase and underscores allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 010

• Message text: Invalid internal name '&1'; only uppercase and underscores allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED010 - Invalid internal name '&1'; only uppercase and underscores allowed ?

  The SAP error message /IWBEP/CM_V4_MED010 Invalid internal name '&1'; only uppercase and underscores allowed typically occurs in the context of SAP Gateway or OData services when there is an issue with the naming conventions of the internal names used in the service definitions. This error indicates that the internal name provided does not conform to the expected format, which requires that names consist only of uppercase letters and underscores.
  Cause:
  
  Invalid Naming Convention: The internal name provided in the OData service definition contains lowercase letters, special characters, or spaces, which are not allowed.
  Incorrect Configuration: The error may arise from incorrect configuration in the service definition or model.
  Data Model Issues: If you are using a data model that has been defined incorrectly, it may lead to this error.
  
  Solution:
  
  
  Check Internal Names: Review the internal names used in your OData service or data model. Ensure that all names are in uppercase and only contain underscores. For example, instead of myFieldName, use MY_FIELD_NAME.
  
  
  Modify Service Definitions: If you are using transaction codes like SEGW (Service Builder), go through your entity types, properties, and associations to ensure that all internal names comply with the naming conventions.
  
  
  Regenerate the Service: After making the necessary changes, regenerate the service and check if the error persists. You can do this by:
  
  Right-clicking on the service in the Service Builder and selecting "Generate".
  Activating the service.
  
  
  
  Check for Dependencies: If your service is dependent on other services or data models, ensure that those are also correctly defined and do not contain invalid names.
  
  
  Testing: After making the changes, test the OData service to ensure that it is functioning correctly without any errors.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on naming conventions in OData services.
  SAP Community: You can search for similar issues in the SAP Community forums, where other users may have encountered and resolved the same error.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SEGW for service definition and IWFND/MAINT_SERVICE for service maintenance.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service is correctly configured.