How To Fix SADL_GW029 - Sticky session request error: Session end not in last changeset

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW -

• Message number: 029

• Message text: Sticky session request error: Session end not in last changeset

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW029 - Sticky session request error: Session end not in last changeset ?

  The SAP error message SADL_GW029: Sticky session request error: Session end not in last changeset typically occurs in the context of SAP Gateway and the SAP Application Development Framework (SADL). This error is related to the handling of session states in the context of OData services and can arise when there is a mismatch in the expected session state during a request.
  Cause:
  
  Session Management Issues: The error indicates that the session end was not found in the last changeset. This can happen if the session is not properly managed, leading to inconsistencies in the state of the session.
  Concurrency Issues: If multiple requests are being processed simultaneously, it may lead to conflicts in session management.
  Incorrect Changeset Handling: If the changeset is not correctly defined or if there are issues with the way changesets are being committed, it can lead to this error.
  Network Issues: Sometimes, network interruptions or timeouts can cause the session to be lost or not properly recognized.
  
  Solution:
  
  Check Session Management: Ensure that the session is being properly managed in your application. Verify that the session is correctly opened and closed, and that all changes are committed within the same session.
  Review Changeset Logic: Make sure that the changeset is correctly defined and that all operations within the changeset are valid. Ensure that the session end is included in the last changeset.
  Handle Concurrency: If your application is handling multiple requests, consider implementing proper locking mechanisms or handling to avoid conflicts.
  Debugging: Use debugging tools to trace the session state and identify where the mismatch occurs. Look for any exceptions or errors that may indicate why the session end is not recognized.
  Network Stability: Ensure that the network connection is stable and that there are no interruptions that could affect session handling.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to SADL and OData services for any known issues or patches that may address this error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAP documentation for SADL and OData services to ensure that you are following best practices for session management and changeset handling.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed logs and context around the error.