How To Fix /IWBEP/CM_V4S_RUN060 - Skip-token not allowed for non-collection response

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4S_RUN -

• Message number: 060

• Message text: Skip-token not allowed for non-collection response

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4S_RUN060 - Skip-token not allowed for non-collection response ?

  The SAP error message /IWBEP/CM_V4S_RUN060 Skip-token not allowed for non-collection response typically occurs in the context of OData services when a client attempts to use a skip-token for pagination on a response that is not a collection (i.e., it is not returning multiple records).
  Cause:
  
  Non-Collection Response: The error arises when the OData service is expected to return a single entity or a non-collection response, but the client is trying to apply pagination using a skip-token. Skip-tokens are only applicable for collection responses where multiple records are returned.
  Incorrect Client Request: The client may be incorrectly configured to request pagination on a single entity or a non-collection response.
  
  Solution:
  
  Check the OData Service: Ensure that the OData service you are calling is designed to return a collection when you are using skip-token. If the service is meant to return a single entity, you should not use skip-token in your request.
  Modify the Client Request: If you are using a client application (like SAP Fiori, Postman, etc.), ensure that you are not including the $skiptoken parameter in your request when expecting a single entity response.
  Review the Service Metadata: Check the service metadata (usually accessible via the $metadata endpoint) to understand the structure of the responses and ensure that you are using the correct endpoints for collections versus single entities.
  Error Handling: Implement error handling in your client application to gracefully handle cases where a skip-token is not applicable.
  
  Related Information:
  
  OData Protocol: Familiarize yourself with the OData protocol, especially how pagination works with collections. The OData specification outlines how skip and top parameters are used for paginating through collections.
  SAP Gateway: If you are working with SAP Gateway services, review the service implementation to ensure that it correctly distinguishes between collection and non-collection responses.
  Debugging: Use tools like SAP Gateway Client or transaction /IWFND/GW_CLIENT to test your OData service and see the raw responses to understand the structure of the data being returned.
  
  By addressing the above points, you should be able to resolve the error and ensure that your OData requests are correctly formed based on the expected responses from the service.