How To Fix /IWBEP/CM_MGW_RT213 - No key set for content-id-ref '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 213

• Message text: No key set for content-id-ref '&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 /IWBEP/CM_MGW_RT213 - No key set for content-id-ref '&1' ?

  The SAP error message /IWBEP/CM_MGW_RT213 No key set for content-id-ref '&1' typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to find a key for a specific content ID reference, which is often related to the handling of entity sets in OData services.
  Cause:
  
  Missing Key Definition: The entity type in the OData service may not have a defined key, or the key is not being passed correctly in the request.
  Incorrect URL: The URL used to access the OData service might be incorrect, leading to the inability to resolve the entity.
  Data Model Issues: There may be issues with the underlying data model or the way the service is defined in the SAP Gateway.
  Service Activation: The OData service might not be properly activated or registered in the SAP Gateway.
  Authorization Issues: The user may not have the necessary authorizations to access the data.
  
  Solution:
  
  Check Entity Definition: Ensure that the entity type in the OData service has a defined key. You can do this by checking the service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Verify URL: Double-check the URL being used to access the OData service. Ensure that it includes the correct entity set and key values.
  Service Activation: Make sure that the OData service is activated in the SAP Gateway. You can check this in transaction code /IWFND/MAINT_SERVICE.
  Debugging: Use the SAP Gateway Client (transaction code /IWFND/GW_CLIENT) to test the OData service and see if you can replicate the issue. This can help identify if the problem is with the request or the service itself.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the OData service and the underlying data.
  Review Logs: Check the SAP Gateway error logs (transaction code /IWFND/ERROR_LOG) for more detailed information about the error.
  
  Related Information:
  
  SAP Gateway: The SAP Gateway is a technology that allows you to connect devices, environments, and applications to SAP systems using OData services.
  OData Services: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. In SAP, OData services are used to expose business data and operations.
  Service Builder (SEGW): This is the transaction code used to create and manage OData services in SAP Gateway.
  
  If the issue persists after following these steps, it may be beneficial to consult SAP support or refer to the SAP Community for further assistance.