How To Fix 00854 - Amount of extended memory in user contexts that is active in WPs now

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 854

• Message text: Amount of extended memory in user contexts that is active in WPs now

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 00854 - Amount of extended memory in user contexts that is active in WPs now ?

  The SAP error message "00854 Amount of extended memory in user contexts that is active in WPs now" typically indicates that the amount of extended memory allocated for user contexts in the work processes (WPs) has reached its limit. This can lead to performance issues or even system failures if not addressed.
  Cause:
  
  Memory Allocation Limits: The SAP system has a defined limit for the amount of extended memory that can be allocated to user contexts. If this limit is reached, new requests for memory cannot be fulfilled.
  High User Load: A high number of concurrent users or processes can lead to increased memory consumption, causing the limit to be reached.
  Inefficient Programs: Poorly designed ABAP programs or background jobs that consume excessive memory can contribute to this issue.
  Configuration Issues: Incorrect configuration of the instance profile parameters related to memory management can also lead to this error.
  
  Solution:
  
  
  Increase Extended Memory: 
  
  You can increase the amount of extended memory allocated to the instance by adjusting the profile parameters in the instance profile. Look for parameters like em/initial_size_MB and em/size_MB and increase their values.
  After making changes, restart the SAP instance for the changes to take effect.
  
  
  
  Optimize ABAP Programs: 
  
  Review and optimize any ABAP programs that are consuming excessive memory. This may involve improving data handling, reducing the size of internal tables, or using more efficient algorithms.
  
  
  
  Monitor Work Processes: 
  
  Use transaction ST02 (Tune Summary) to monitor memory usage in the system. This can help identify which work processes are consuming the most memory.
  Analyze the workload and consider redistributing tasks or scheduling jobs during off-peak hours.
  
  
  
  Adjust User Contexts: 
  
  If possible, reduce the number of user contexts that are active simultaneously. This can be done by limiting the number of concurrent users or optimizing the way user sessions are managed.
  
  
  
  Check System Configuration: 
  
  Review the instance profile settings to ensure that they are configured correctly for your system's workload and memory requirements.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and performance tuning for specific recommendations and best practices.
  Transaction Codes: Use transaction codes like ST02 (Memory Management), ST03 (Workload Analysis), and SM50 (Process Overview) to monitor and analyze memory usage and performance.
  Documentation: Refer to the SAP Basis documentation for detailed information on memory management and configuration parameters.
  
  By addressing the underlying causes and implementing the suggested solutions, you can resolve the error and improve the overall performance of your SAP system.