How To Fix UPS405 - Resource problem: Number of active processes: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UPS - ALE Distribution Packet

• Message number: 405

• Message text: Resource problem: Number of active processes: &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UPS405 - Resource problem: Number of active processes: &1 ?

  The SAP error message UPS405 ("Resource problem: Number of active processes: &1") typically indicates that the number of active processes in the SAP system has reached its limit. This can occur in various contexts, such as when the system is under heavy load or when there are configuration issues.
  Cause:
  
  Exceeding Process Limits: The number of active processes (dialog work processes, background work processes, etc.) has exceeded the configured limit in the SAP system.
  High Load: The system may be experiencing a high volume of transactions or background jobs, leading to resource exhaustion.
  Configuration Issues: The configuration settings for the number of work processes may not be optimized for the current workload.
  Long-Running Transactions: Some transactions may be taking longer than expected, holding up available processes.
  System Resource Constraints: Insufficient hardware resources (CPU, memory) can also lead to this issue.
  
  Solution:
  
  
  Increase the Number of Work Processes:
  
  Go to the SAP profile parameters and increase the number of dialog or background work processes as needed. This can be done in transaction RZ10 or by editing the instance profile directly.
  After making changes, restart the SAP instance for the changes to take effect.
  
  
  
  Monitor and Optimize Workload:
  
  Use transaction SM66 to monitor active processes and identify long-running or stuck processes.
  Analyze the workload using transaction ST03N to understand peak usage times and adjust the configuration accordingly.
  
  
  
  Check for Long-Running Transactions:
  
  Identify and resolve any long-running transactions that may be holding up processes. You can use transaction SM50 to view the status of work processes.
  
  
  
  Review System Resources:
  
  Ensure that the underlying hardware resources (CPU, memory, disk I/O) are sufficient for the workload. Consider upgrading hardware if necessary.
  
  
  
  Adjust Background Job Scheduling:
  
  If background jobs are causing the issue, consider rescheduling them to off-peak hours or optimizing their execution.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM50: Monitor work processes.
  SM66: Global work process overview.
  ST03N: Workload analysis.
  RZ10: Profile parameter maintenance.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on configuring work processes and performance tuning.
  
  
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to address the UPS405 error and optimize your SAP system's performance.