How To Fix /SAPAPO/PP_OPTIMIZER273 - Not enough memory

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PP_OPTIMIZER -

• Message number: 273

• Message text: Not enough memory

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PP_OPTIMIZER273 - Not enough memory ?

  The SAP error message /SAPAPO/PP_OPTIMIZER273 Not enough memory typically occurs in the context of the SAP Advanced Planning and Optimization (APO) module, particularly when running the PP (Production Planning) Optimizer. This error indicates that the system has run out of memory while trying to execute a planning run or optimization task.
  Causes:
  
  Insufficient Memory Allocation: The system may not have enough memory allocated to handle the data being processed. This can happen if the planning run involves a large dataset or complex calculations.
  Large Planning Area: If the planning area contains a significant amount of data (e.g., many products, locations, or time periods), it can lead to memory exhaustion.
  System Configuration: The SAP system may not be optimally configured for the workload, leading to inefficient memory usage.
  Background Jobs: If multiple background jobs are running simultaneously, they may compete for memory resources, leading to this error.
  Data Volume: High data volume in the planning area or large master data can also contribute to memory issues.
  
  Solutions:
  
  
  Increase Memory Allocation:
  
  Adjust the memory settings in the SAP system profile parameters. You can increase the abap/heap_area_total and abap/heap_area_dia parameters to allocate more memory for ABAP programs.
  Consider increasing the rdisp/PG_MAXFS parameter to allow more memory for the dialog work processes.
  
  
  
  Optimize Planning Area:
  
  Review the planning area and consider reducing the amount of data being processed. This can involve limiting the time horizon or the number of products included in the planning run.
  Archive old data that is no longer needed for planning to reduce the overall data volume.
  
  
  
  Run Jobs in Off-Peak Hours:
  
  Schedule the planning runs during off-peak hours when the system is less busy to ensure that more memory resources are available.
  
  
  
  Check for Background Jobs:
  
  Monitor and manage background jobs to ensure that they are not consuming excessive memory. You can use transaction SM37 to check the status of background jobs.
  
  
  
  System Upgrade:
  
  If the issue persists, consider upgrading the hardware or the SAP system to a version that can handle larger datasets more efficiently.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide specific fixes or recommendations for this error. You can search the SAP Support Portal for notes related to /SAPAPO/PP_OPTIMIZER273.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/OPTIMIZER to access the optimizer settings and configurations.
  Monitoring Tools: Use transaction ST02 (Tune Summary) and ST04 (Database Performance) to monitor memory usage and performance.
  SAP Community: Engage with the SAP Community forums for insights and shared experiences from other users who may have encountered similar issues.
  
  By following these steps, you should be able to address the memory issue related to the /SAPAPO/PP_OPTIMIZER273 error message. If the problem persists, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.