How To Fix SADL_GW_DT_SB_UI028 - Service definition already contains an entity-set '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_DT_SB_UI - Gateway Service Builder UI Integration for SADL

• Message number: 028

• Message text: Service definition already contains an entity-set '&1'

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 SADL_GW_DT_SB_UI028 - Service definition already contains an entity-set '&1' ?

  The SAP error message SADL_GW_DT_SB_UI028 indicates that there is an issue with the service definition in the SAP Gateway. Specifically, it means that the service definition already contains an entity set with the name specified by &1. This typically occurs when you are trying to create or register a new service definition that conflicts with an existing one.
  Cause:
  
  Duplicate Entity Set: The most common cause of this error is that you are attempting to create an entity set that already exists in the service definition. This can happen if you are reusing the same name for different entity sets or if there is a naming conflict.
  Service Definition Issues: There may be issues with the service definition itself, such as incorrect configurations or inconsistencies in the metadata.
  Transport Issues: If you are transporting objects between systems, there may be conflicts due to existing objects in the target system.
  
  Solution:
  
  Check Existing Entity Sets: Review the existing service definition to see if the entity set with the specified name already exists. You can do this by navigating to the service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Rename the Entity Set: If you find that the entity set name is indeed already in use, consider renaming your new entity set to avoid the conflict.
  Delete or Modify Existing Entity Set: If the existing entity set is no longer needed, you can delete it or modify it as necessary. Be cautious with this approach, as it may affect other parts of your application.
  Check for Transport Conflicts: If this issue arises after a transport, ensure that the transport did not overwrite or conflict with existing definitions in the target system.
  Regenerate the Service: After making 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".
  
  Related Information:
  
  Transaction Codes: 
  
  SEGW: Service Builder for creating and managing OData services.
  IWFND/MAINT_SERVICE: To manage and maintain OData services in the SAP Gateway.
  
  
  Documentation: Refer to SAP Help documentation for more details on service definitions and entity sets.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the error and successfully manage your service definitions in SAP Gateway.