How To Fix /IWBEP/CM_MGW_EDP091 - -- Expand Entity Section --

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_EDP -

• Message number: 091

• Message text: -- Expand Entity Section --

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_MGW_EDP091 - -- Expand Entity Section -- ?

  The SAP error message /IWBEP/CM_MGW_EDP091 -- Expand Entity Section -- typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the expansion of an entity in an OData request, often related to the way the data model is defined or how the request is structured.
  Causes:
  
  Incorrect OData Request: The request may be trying to expand an entity that is not properly defined in the OData service or does not exist.
  Data Model Issues: The underlying data model may not support the requested expansion due to relationships not being properly defined.
  Service Implementation: The OData service implementation may not handle the expand operation correctly, possibly due to missing logic in the service methods.
  Authorization Issues: The user may not have the necessary permissions to access the expanded entity.
  Service Metadata: The service metadata might not be up to date, leading to discrepancies between the expected and actual data model.
  
  Solutions:
  
  Check the OData Request: Review the OData request to ensure that the entity being expanded is correctly specified and exists in the service.
  Review Data Model: Ensure that the relationships between entities are correctly defined in the data model. Check the associations and navigation properties.
  Update Service Implementation: If you have access to the service implementation, ensure that the logic for handling the expand operation is correctly implemented.
  Check Authorizations: Verify that the user making the request has the necessary authorizations to access the expanded entity.
  Refresh Service Metadata: If changes have been made to the data model or service, refresh the service metadata to ensure it reflects the current state.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for detailed error logs that can provide more context on the issue.
  
  Related Information:
  
  SAP Gateway: Understanding how SAP Gateway works and how OData services are structured can help in troubleshooting these types of errors.
  OData Protocol: Familiarity with the OData protocol and its conventions for entity relationships and expansions can provide insights into how to structure requests correctly.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific error message or the OData service you are working with.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting the SAP community for further assistance.