How To Fix SWN128 - Error when locking. Unable to determine views

SAP Error Message - Details

• Message type: E = Error

• Message class: SWN - WF Notif: Messages

• Message number: 128

• Message text: Error when locking. Unable to determine views

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWN128 - Error when locking. Unable to determine views ?

  The SAP error message SWN128 typically occurs in the context of the SAP Workflow Notification (SWN) framework, particularly when there are issues related to locking mechanisms or database views. This error can arise due to various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  Database Locking Issues: The error may occur if there are locks on the database tables that prevent the system from accessing the necessary views.
  Missing or Incomplete Views: The required database views may not exist or may not be properly defined in the system.
  Authorization Issues: The user executing the transaction may not have the necessary authorizations to access the views or perform the locking operation.
  System Configuration Issues: Incorrect configuration settings in the workflow or notification settings can lead to this error.
  Transport Issues: If the system has recently undergone a transport, there may be inconsistencies in the database objects.
  
  Solutions:
  
  
  Check Database Locks:
  
  Use transaction code SM12 to check for any locks on the relevant database tables. If you find locks that are not needed, you can release them.
  
  
  
  Verify Views:
  
  Check if the required views exist in the database. You can use transaction code SE11 to look for the views. If they are missing, you may need to recreate them or transport them from another system.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to access the views and perform the required operations. You can check this using transaction code SU53 after the error occurs.
  
  
  
  Check Workflow Configuration:
  
  Review the configuration settings for the workflow and notifications. Ensure that all necessary settings are correctly configured.
  
  
  
  Transport Consistency:
  
  If the error occurred after a transport, check for any inconsistencies in the transported objects. You may need to re-transport or adjust the objects.
  
  
  
  System Logs:
  
  Check the system logs (transaction code SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates available that resolve the issue.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To check and manage database locks.
  SE11: To view and manage database views.
  SU53: To analyze authorization issues.
  SLG1: To view application logs.
  
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any relevant logs and the steps that led to the error.
  
  
  By following these steps, you should be able to diagnose and resolve the SWN128 error effectively.