How To Fix /IWBEP/CM_V4_MED317 - More than one property in entity type '&1' is entity delta status prop.

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 317

• Message text: More than one property in entity type '&1' is entity delta status prop.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED317 - More than one property in entity type '&1' is entity delta status prop. ?

  The SAP error message /IWBEP/CM_V4_MED317 indicates that there is an issue with the entity type in your OData service. Specifically, it suggests that more than one property in the specified entity type is marked as an "entity delta status property." This can occur when you are trying to implement delta handling in your OData service, but the configuration is not set up correctly.
  Cause:
  
  Multiple Delta Properties: The entity type has been defined with more than one property that is intended to track changes (delta status). In OData, typically only one property should be designated for this purpose.
  Incorrect Metadata Configuration: The metadata for the OData service may have been incorrectly defined, leading to multiple properties being recognized as delta status properties.
  Model Configuration Issues: There may be issues in the way the data model is configured in the backend, leading to conflicts in the delta tracking properties.
  
  Solution:
  
  
  Review Entity Type Definition: Check the definition of the entity type in your OData service. Ensure that only one property is marked as the delta status property. This is usually done in the service definition or the metadata configuration.
  
  
  Adjust Metadata: If you are using a service builder (like SEGW), go to the entity type and ensure that only one property is set as the delta status property. You can do this by:
  
  Opening the service in the Service Builder.
  Navigating to the entity type in question.
  Checking the properties and ensuring that only one is marked for delta tracking.
  
  
  
  Regenerate the Service: After making changes to the entity type, regenerate the OData service to ensure that the changes take effect. This can usually be done in the Service Builder by using the "Generate" option.
  
  
  Test the Service: After making the necessary adjustments, test the OData service to ensure that the error no longer occurs and that delta handling works as expected.
  
  
  Related Information:
  
  OData Delta Handling: Delta handling in OData allows clients to request only the changes (insertions, updates, deletions) that have occurred since a previous request. This is useful for optimizing data transfer and improving performance.
  SAP Gateway: The error is related to the SAP Gateway framework, which is responsible for exposing OData services. Understanding how to configure and manage OData services in SAP Gateway is essential for troubleshooting such issues.
  SAP Notes and Documentation: Check SAP Notes and the official SAP documentation for any specific guidelines or updates related to OData service configuration and delta handling.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting the SAP community for further assistance.