How To Fix APO_BAPI429 - No more roll memory available

SAP Error Message - Details

• Message type: E = Error

• Message class: APO_BAPI - Message Class for APO BAPIs

• Message number: 429

• Message text: No more roll memory available

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APO_BAPI429 - No more roll memory available ?

  The SAP error message APO_BAPI429: No more roll memory available typically occurs in the SAP Advanced Planning and Optimization (APO) module when the system runs out of roll memory. Roll memory is a type of memory used by SAP to store data that is not currently being processed but may be needed later. When the roll memory is exhausted, the system cannot allocate additional memory for processing, leading to this error.
  Causes:
  
  Insufficient Roll Memory Configuration: The roll memory settings in the SAP system may not be configured to handle the workload, especially if there are many users or large data sets being processed.
  High Workload: A sudden spike in workload, such as running large planning jobs or batch processes, can consume available roll memory quickly.
  Memory Leaks: Inefficient coding or poorly designed processes can lead to memory leaks, where memory is not released back to the system after it is no longer needed.
  System Resource Limitations: The underlying hardware may not have enough physical memory to support the required roll memory.
  
  Solutions:
  
  
  Increase Roll Memory:
  
  You can increase the roll memory by adjusting the profile parameters in the SAP system. The parameters to look for are:
  
  rdisp/roll_area: This parameter defines the size of the roll area.
  abap/heap_area_total: This parameter defines the total heap memory available for ABAP programs.
  
  
  You can change these parameters in the instance profile and restart the SAP instance for the changes to take effect.
  
  
  
  Monitor and Optimize Workload:
  
  Use transaction codes like ST03N (Workload Analysis) and ST06 (Operating System Monitor) to analyze the workload and identify any bottlenecks or high memory usage.
  Optimize the processes that are consuming excessive memory.
  
  
  
  Check for Memory Leaks:
  
  Review custom ABAP code and any enhancements to ensure there are no memory leaks. Use transaction ST22 (Dump Analysis) to check for short dumps related to memory issues.
  
  
  
  Increase Physical Memory:
  
  If the server is consistently running out of memory, consider upgrading the physical memory of the server hosting the SAP system.
  
  
  
  Adjust Batch Job Scheduling:
  
  If the error occurs during batch processing, consider staggering the execution of batch jobs to reduce the peak memory load.
  
  
  
  Use Transaction SM37:
  
  Monitor the status of background jobs and check for any jobs that may be consuming excessive resources.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and the specific error message for any patches or recommendations from SAP.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have faced similar issues.
  Documentation: Review SAP documentation on memory management and performance tuning for best practices.
  
  By following these steps, you should be able to address the APO_BAPI429 error and improve the memory management of your SAP system.