How To Fix /IWBEP/CM_CP154 - The delta link '&1' returned by the server is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 154

• Message text: The delta link '&1' returned by the server is not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP154 - The delta link '&1' returned by the server is not supported ?

  The SAP error message /IWBEP/CM_CP154 indicates that there is an issue with the delta link returned by the server in an OData service. This error typically occurs when the delta link that is being used to fetch changes (deltas) from the server is either invalid, outdated, or not supported by the current configuration of the OData service.
  Cause:
  
  Invalid Delta Link: The delta link may have been invalidated due to changes in the underlying data model or due to the expiration of the delta token.
  Service Configuration: The OData service may not be configured to support delta queries properly.
  Data Model Changes: Changes in the data model or the underlying database that affect the delta mechanism.
  Session Expiration: The session associated with the delta link may have expired, leading to an invalid link.
  Incompatibility: The delta link may not be compatible with the current version of the OData service.
  
  Solution:
  
  Refresh the Delta Link: Try to obtain a new delta link by performing a full data retrieval instead of relying on the old delta link.
  Check Service Configuration: Ensure that the OData service is correctly configured to support delta queries. This includes checking the service implementation and ensuring that the necessary annotations for delta support are present.
  Review Data Model Changes: If there have been recent changes to the data model, ensure that the OData service has been updated accordingly.
  Session Management: If the session has expired, re-establish the session and obtain a new delta link.
  Consult Documentation: Review the SAP documentation for the specific OData service to ensure that you are using the correct parameters and that the service supports the operations you are trying to perform.
  
  Related Information:
  
  OData Services: Understanding how OData services work, especially with respect to delta queries, can help in troubleshooting this error.
  SAP Notes: Check for any relevant SAP Notes or updates that may address known issues with the OData service you are using.
  Debugging: If you have access to the backend, consider debugging the OData service to see how it handles delta links and to identify any potential issues in the implementation.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.