How To Fix /SAPAPO/PP_OPTIMIZER820 - Starting resource decomposition

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PP_OPTIMIZER -

• Message number: 820

• Message text: Starting resource decomposition

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PP_OPTIMIZER820 - Starting resource decomposition ?

  The SAP error message /SAPAPO/PP_OPTIMIZER820 typically indicates an issue related to the resource decomposition process in the SAP Advanced Planning and Optimization (APO) module, specifically during the planning run of the PP/DS (Production Planning and Detailed Scheduling) optimizer.
  Cause:
  The error can be caused by several factors, including:
  
  
  Resource Configuration Issues: The resources may not be properly configured in the system. This includes missing or incorrect settings for capacity, availability, or resource types.
  
  
  Master Data Issues: Problems with master data such as incorrect or incomplete product, location, or resource master data can lead to this error.
  
  
  Planning Version Issues: The planning version being used may not be correctly set up or may not have the necessary data.
  
  
  Capacity Constraints: If the resources are over-allocated or if there are constraints that prevent the optimizer from decomposing resources effectively, this error may occur.
  
  
  Optimization Settings: Incorrect settings in the optimizer profile or parameters can lead to issues during the optimization process.
  
  
  Solution:
  To resolve the /SAPAPO/PP_OPTIMIZER820 error, you can take the following steps:
  
  
  Check Resource Configuration:
  
  Verify that all resources involved in the planning run are correctly configured.
  Ensure that the capacity and availability settings are accurate.
  
  
  
  Review Master Data:
  
  Check the master data for products, resources, and locations to ensure that they are complete and correct.
  Look for any inconsistencies or missing data that could affect the planning process.
  
  
  
  Validate Planning Version:
  
  Ensure that the planning version being used is correctly set up and contains all necessary data.
  Check if the version is active and has the required planning data.
  
  
  
  Analyze Capacity Constraints:
  
  Review the capacity utilization of the resources to ensure they are not over-allocated.
  Adjust the planning parameters or resource allocations as necessary.
  
  
  
  Optimize Settings:
  
  Review the optimizer profile and parameters to ensure they are set correctly for the planning scenario.
  Make adjustments as needed to align with the business requirements.
  
  
  
  Check Logs and Traces:
  
  Review the logs and traces generated during the planning run for additional details on the error.
  This can provide insights into what specifically caused the decomposition to fail.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Testing:
  
  After making changes, run a test planning run to see if the issue persists.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for APO and PP/DS for detailed information on resource configuration and optimization settings.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists after troubleshooting, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the /SAPAPO/PP_OPTIMIZER820 error.