How To Fix /SAPAPO/PP_OPTIMIZER805 - Starting time decomposition

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PP_OPTIMIZER -

• Message number: 805

• Message text: Starting time decomposition

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PP_OPTIMIZER805 - Starting time decomposition ?

  The SAP error message /SAPAPO/PP_OPTIMIZER805 related to "Starting time decomposition" typically occurs in the context of the SAP Advanced Planning and Optimization (APO) module, particularly when using the PP/DS (Production Planning and Detailed Scheduling) optimizer. This error can arise during the planning run when the optimizer is unable to start the time decomposition process due to various reasons.
  Possible Causes:
  
  Data Issues: There may be missing or inconsistent data in the master data (e.g., resources, products, or production versions) or transaction data (e.g., planned orders, purchase orders).
  Configuration Problems: Incorrect settings in the optimizer profile or planning area can lead to issues during the optimization process.
  Resource Constraints: If there are constraints on resources that are not properly defined or if the resources are not available, the optimizer may fail to start.
  Planning Area Issues: The planning area may not be set up correctly, or there may be issues with the time buckets defined in the planning area.
  Memory or Performance Issues: Insufficient memory or performance bottlenecks on the server can also lead to this error.
  
  Solutions:
  
  Check Master Data: Ensure that all relevant master data is complete and consistent. Verify that resources, products, and production versions are correctly defined.
  Review Configuration: Check the optimizer profile and planning area settings to ensure they are configured correctly. Make adjustments as necessary.
  Analyze Resource Availability: Confirm that all resources required for the planning run are available and that their capacities are correctly defined.
  Validate Planning Area: Ensure that the planning area is correctly set up, including the time buckets and any relevant settings.
  Monitor System Performance: Check the system performance and memory usage during the planning run. If necessary, optimize the server resources or schedule the planning run during off-peak hours.
  Log Analysis: Review the detailed logs generated during the planning run for any additional error messages or warnings that could provide more context on the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message for any patches or updates that may address known issues.
  Documentation: Refer to the SAP APO documentation for detailed information on configuring the PP/DS optimizer and troubleshooting common issues.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance, providing them with detailed logs and context regarding the error.