How To Fix RZ355 - Instance is configured for & service, no. of work processes must be > 0

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 355

• Message text: Instance is configured for & service, no. of work processes must be > 0

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RZ355 - Instance is configured for & service, no. of work processes must be > 0 ?

  The SAP error message RZ355 indicates that the SAP instance is configured for a specific service, but there are no work processes available to handle requests for that service. This can occur in various scenarios, such as when the instance is not properly configured, or when the work processes are not started or have crashed.
  Cause:
  
  Configuration Issues: The instance may not be configured correctly in the instance profile.
  Work Process Not Started: The work processes may not have been started due to system issues or misconfiguration.
  Resource Limitations: The server may not have enough resources (CPU, memory) to start the required work processes.
  System Errors: There may be underlying system errors or issues that prevent the work processes from starting.
  
  Solution:
  
  
  Check Instance Profile:
  
  Go to the instance profile (usually found in the instance directory) and check the configuration for the work processes. Ensure that the number of work processes is set to a value greater than 0 for the required service.
  
  
  
  Start Work Processes:
  
  Use transaction SM66 or SM50 to check the status of the work processes. If they are not running, you can try to start them manually.
  You can also restart the SAP instance using the command line or SAP Management Console (SAP MMC).
  
  
  
  Check System Logs:
  
  Review the system logs (transaction SM21) and developer traces (transaction ST22) for any errors that might indicate why the work processes are not starting.
  
  
  
  Resource Check:
  
  Ensure that the server has enough resources (CPU, memory) available. If the server is under heavy load, consider optimizing resource usage or upgrading the hardware.
  
  
  
  Restart the SAP System:
  
  If the above steps do not resolve the issue, consider restarting the entire SAP system. This can sometimes clear up transient issues that prevent work processes from starting.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error message or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM50: Monitor work processes.
  SM66: Global work process overview.
  SM21: System log.
  ST22: Dump analysis.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more detailed information on instance configuration and work process management.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to diagnose and resolve the RZ355 error message effectively.