How To Fix /IWBEP/CM_COS_QRL002 - Delta token unavailable. Try again without delta token

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_COS_QRL -

• Message number: 002

• Message text: Delta token unavailable. Try again without delta token

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_COS_QRL002 - Delta token unavailable. Try again without delta token ?

  The SAP error message /IWBEP/CM_COS_QRL002 Delta token unavailable. Try again without delta token typically occurs in the context of SAP Gateway and OData services when there is an issue with the delta token mechanism used for tracking changes in data.
  Cause:
  
  Delta Token Expiration: The delta token may have expired or is no longer valid. Delta tokens are used to track changes in data since the last request, and if the token is not valid, the system cannot provide the requested changes.
  Data Changes: If there have been significant changes in the underlying data model or if the data has been deleted or modified in a way that invalidates the delta token, this error can occur.
  Service Configuration: The OData service may not be properly configured to support delta queries, or there may be issues with the service implementation.
  Network Issues: Temporary network issues or interruptions can also lead to this error if the request cannot be processed correctly.
  
  Solution:
  
  Retry Without Delta Token: As the error message suggests, you can try to make the request without the delta token. This will fetch the complete dataset instead of just the changes.
  Refresh the Delta Token: If you are using a client application, ensure that you refresh the delta token by making a request to the OData service without the delta token to obtain a new one.
  Check Service Configuration: Verify that the OData service is correctly configured to support delta queries. This may involve checking the service implementation in the SAP Gateway.
  Monitor Data Changes: If there are frequent changes to the underlying data, consider implementing a mechanism to handle these changes more gracefully, such as regularly refreshing the data or adjusting the delta token usage.
  Consult Logs: Check the SAP Gateway logs for more detailed error messages or stack traces that can provide additional context about the issue.
  Update SAP Notes: Ensure that your SAP system is up to date with the latest support packages and notes, as there may be fixes related to delta token handling.
  
  Related Information:
  
  SAP Gateway Documentation: Review the official SAP documentation for OData services and delta token handling to understand the expected behavior and configuration options.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is impacting production systems.
  
  By following these steps, you should be able to address the /IWBEP/CM_COS_QRL002 error and ensure that your OData service functions correctly.