How To Fix CNV20200077 - Generation error for dyn. subroutine pool: probably due to memory problem

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 077

• Message text: Generation error for dyn. subroutine pool: probably due to memory problem

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200077 - Generation error for dyn. subroutine pool: probably due to memory problem ?

  The SAP error message CNV20200077 indicates a generation error for a dynamic subroutine pool, which is likely caused by memory issues during the generation process. This error typically occurs in the context of data migration or conversion projects, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Causes:
  
  Insufficient Memory: The most common cause is that the system does not have enough memory allocated to handle the generation of the dynamic subroutine pool.
  Large Data Volume: If the data volume being processed is very large, it may exceed the memory limits.
  System Configuration: The SAP system may not be optimally configured for the tasks being performed, leading to memory allocation issues.
  Background Job Limitations: If the process is running as a background job, it may have lower memory limits compared to foreground processes.
  
  Solutions:
  
  
  Increase Memory Allocation:
  
  Check and increase the memory settings in the SAP system. This can be done by adjusting the instance profile parameters, such as abap/heap_area_dia and abap/heap_area_nondia.
  You may also want to increase the rdisp/PG_MAXFS parameter, which controls the maximum size of the program's memory.
  
  
  
  Optimize Data Volume:
  
  If possible, reduce the amount of data being processed in a single run. This can be done by splitting the data into smaller batches.
  Review the data being migrated to ensure that only necessary data is included.
  
  
  
  Run in Foreground:
  
  If the process is currently running as a background job, try running it in the foreground to see if it resolves the memory issue.
  
  
  
  Check System Logs:
  
  Review the system logs (transaction SM21) and developer traces (transaction ST22) for any additional error messages or warnings that could provide more context about the memory issue.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  System Upgrade:
  
  If the issue persists and is related to system limitations, consider upgrading the hardware or the SAP system version to a more recent release that may handle memory management better.
  
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like ST02 (Tune Summary), ST03 (Workload Analysis), and SM37 (Job Monitoring) to monitor system performance and job statuses.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  SAP Support: If the problem continues after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  By addressing the memory allocation and optimizing the data processing, you should be able to resolve the CNV20200077 error effectively.