How To Fix SWN066 - Error when writing sender log

SAP Error Message - Details

• Message type: E = Error

• Message class: SWN - WF Notif: Messages

• Message number: 066

• Message text: Error when writing sender log

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWN066 - Error when writing sender log ?

  The SAP error message SWN066, which indicates an error when writing the sender log, typically occurs in the context of the SAP Workflow Notification system. This error can arise due to various reasons, including issues with the database, configuration problems, or issues with the workflow itself.
  Causes of SWN066 Error
  
  
  Database Issues: There may be problems with the database connection or the database itself, such as insufficient space, corruption, or connectivity issues.
  
  
  Authorization Problems: The user or service account that is trying to write to the log may not have the necessary authorizations.
  
  
  Configuration Errors: Incorrect configuration settings in the workflow or notification settings can lead to this error.
  
  
  System Performance: High load on the system or performance issues can also cause this error, especially if the system is unable to handle the logging requests in a timely manner.
  
  
  Transport Issues: If the system has recently undergone a transport, there may be inconsistencies in the workflow configuration.
  
  
  Solutions to SWN066 Error
  
  
  Check Database Status: Ensure that the database is up and running, and check for any issues such as space limitations or corruption. You can use transaction codes like DB02 to monitor database performance and space.
  
  
  Review Authorizations: Verify that the user or service account has the necessary authorizations to write to the sender log. You can check this using transaction SU53 or by reviewing the roles assigned to the user.
  
  
  Configuration Review: Go through the workflow and notification configuration settings to ensure they are set up correctly. Check transaction SWN1 for notification settings and SWDD for workflow definitions.
  
  
  System Performance Monitoring: Monitor system performance using transaction ST03 or ST04 to identify any bottlenecks or performance issues that may be affecting logging.
  
  
  Check for Transport Issues: If the error occurred after a transport, review the transport logs and ensure that all necessary objects were transported correctly.
  
  
  Review Application Logs: Use transaction SLG1 to check application logs for any additional error messages or warnings that may provide more context about the issue.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. Sometimes, there are known issues with specific versions of SAP that have been documented.
  
  
  Restart Services: In some cases, restarting the relevant services or the entire SAP system may resolve transient issues.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SWN1 (for notification settings), SWDD (for workflow definitions), and SLG1 (for application logs).
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you have a support contract.
  
  By following these steps, you should be able to diagnose and resolve the SWN066 error effectively.