How To Fix /IWBEP/CM_CP126 - Getting inheritance of entity type '&1' failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 126

• Message text: Getting inheritance of entity type '&1' failed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP126 - Getting inheritance of entity type '&1' failed ?

  The SAP error message /IWBEP/CM_CP126 Getting inheritance of entity type '&1' failed typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the inheritance structure of the entity type specified in the error message. Here are some potential causes, solutions, and related information:
  Causes:
  
  Incorrect Entity Type Definition: The entity type may not be defined correctly in the data model, leading to issues when trying to retrieve its inheritance structure.
  Missing or Incorrect Annotations: Annotations that define the inheritance relationships may be missing or incorrectly specified.
  Data Model Changes: If there have been recent changes to the data model (e.g., adding or modifying entity types), it may lead to inconsistencies.
  Service Registration Issues: The OData service may not be properly registered or activated in the SAP Gateway.
  Authorization Issues: The user may not have the necessary authorizations to access the entity type or its parent entities.
  
  Solutions:
  
  Check Entity Type Definition: Review the definition of the entity type in the data model. Ensure that it is correctly defined and that all necessary properties and relationships are specified.
  Review Annotations: Verify that all required annotations for inheritance are present and correctly defined in the metadata.
  Rebuild the Service: If there have been changes to the data model, consider regenerating the OData service. This can be done using transaction code /IWFND/MAINT_SERVICE to delete and then re-add the service.
  Check Service Activation: Ensure that the OData service is activated and properly registered in the SAP Gateway. You can check this in the SAP Gateway Service Builder (transaction code /IWFND/SEGW).
  Authorization Check: Ensure that the user has the necessary authorizations to access the entity type and its parent entities. This may involve checking roles and authorizations in the SAP system.
  Debugging: If the issue persists, consider debugging the OData service to identify where the error occurs. This may provide more insight into the specific cause of the problem.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: The SAP Community forums can be a valuable resource for finding similar issues and solutions shared by other users.
  Documentation: Review the official SAP documentation for OData services and the SAP Gateway to ensure compliance with best practices.
  
  If the issue continues after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further assistance.