How To Fix /IWBEP/CM_V4_MED303 - Two properties have the same EDM Name '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 303

• Message text: Two properties have the same EDM Name '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED303 - Two properties have the same EDM Name '&1' ?

  The SAP error message /IWBEP/CM_V4_MED303 indicates that there are two properties in your OData service that have the same Entity Data Model (EDM) name. This can occur when defining your OData model, particularly when you have multiple properties in an entity that are either incorrectly defined or have naming conflicts.
  Cause:
  
  Duplicate Property Names: The most common cause is that two properties in the same entity or in related entities have been assigned the same EDM name.
  Incorrect Annotations: Sometimes, annotations or metadata definitions may inadvertently lead to the same EDM name being generated for different properties.
  Model Definition Issues: If you are using a code-based approach to define your OData model, there may be a mistake in the code that leads to duplicate names.
  
  Solution:
  
  Identify Duplicate Properties: Review the entity definition in your OData service to identify which properties are causing the conflict. Look for properties with the same EDM name.
  Rename Properties: Change the name of one of the conflicting properties to ensure that each property has a unique EDM name. This can be done in the data model or in the annotations.
  Check Annotations: If you are using annotations, ensure that they are correctly defined and do not lead to naming conflicts.
  Regenerate Metadata: After making changes, regenerate the metadata for your OData service to ensure that the changes are reflected.
  Test the Service: After resolving the issue, test the OData service to ensure that it is functioning correctly without any errors.
  
  Related Information:
  
  OData Model: Understanding how to define entities and properties in an OData model is crucial. Familiarize yourself with the OData specifications and how SAP implements them.
  SAP Gateway: If you are using SAP Gateway, refer to the documentation for best practices in defining OData services and handling metadata.
  Debugging Tools: Use debugging tools available in SAP to trace the model definition and identify where the duplicate names are being generated.
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service is correctly defined without naming conflicts.