How To Fix /SAPAPO/PPO_OPT168 - No of parallel processes created for optimizer input: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PPO_OPT -

• Message number: 168

• Message text: No of parallel processes created for optimizer input: &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PPO_OPT168 - No of parallel processes created for optimizer input: &1 ?

  The SAP error message /SAPAPO/PPO_OPT168 indicates that there is an issue with the number of parallel processes created for the optimizer input in SAP Advanced Planning and Optimization (APO). This error typically arises when the system is unable to create the expected number of parallel processes for the optimizer, which can affect the performance and efficiency of the optimization run.
  Cause:
  
  System Configuration: The number of parallel processes may be limited by system configuration settings. If the system is configured to allow fewer parallel processes than required, this error can occur.
  Resource Limitations: The server may not have enough resources (CPU, memory) to handle the requested number of parallel processes.
  Optimizer Settings: The optimizer settings in the APO system may not be correctly configured to allow for the desired level of parallel processing.
  Locks or Deadlocks: There may be locks or deadlocks in the system that prevent the creation of additional processes.
  Version or Patch Issues: There may be bugs or issues in the current version of the APO system that affect parallel processing.
  
  Solution:
  
  
  Check Configuration Settings: Review the configuration settings for the optimizer in the APO system. Ensure that the settings allow for the desired number of parallel processes.
  
  Transaction code: /SAPAPO/OPTIMIZER can be used to check and adjust optimizer settings.
  
  
  
  Monitor System Resources: Use transaction codes like SM50 or SM66 to monitor the system's resource usage. Ensure that there are enough resources available to handle the required parallel processes.
  
  
  Adjust Parallel Processing Parameters: You may need to adjust the parameters related to parallel processing in the optimizer settings. This can include increasing the number of allowed parallel processes.
  
  
  Check for Locks: Use transaction code SM12 to check for any locks that may be preventing the creation of parallel processes. If there are unnecessary locks, they can be released.
  
  
  Review Logs: Check the system logs for any additional error messages or warnings that may provide more context about the issue. Transaction code SLG1 can be used to view application logs.
  
  
  Update System: If the issue persists, consider checking for any available patches or updates for your SAP APO system that may address known issues with parallel processing.
  
  
  Consult SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that may provide additional guidance or solutions for this specific error message.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for APO and the optimizer for detailed information on configuration and best practices.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Tuning: Consider performance tuning for your APO system to optimize resource usage and improve the efficiency of the optimizer.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.