How To Fix /SAPAPO/SNPOPT820 - Starting resource decomposition

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SNPOPT -

• Message number: 820

• Message text: Starting resource decomposition

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SNPOPT820 - Starting resource decomposition ?

  The SAP error message /SAPAPO/SNPOPT820 Starting resource decomposition typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with resource decomposition during the planning process. This error can arise due to various reasons, including configuration issues, data inconsistencies, or problems with the planning model.
  Causes:
  
  Resource Configuration Issues: The resources may not be properly configured in the system, leading to issues during decomposition.
  Data Inconsistencies: There may be inconsistencies in the master data, such as incorrect or missing resource definitions, or issues with the planning object structure.
  Capacity Constraints: If the resources have capacity constraints that are not properly defined, it can lead to errors during the planning run.
  Planning Version Issues: The planning version being used may not be correctly set up or may have been corrupted.
  Locking Issues: If another process is locking the resources or planning objects, it can prevent the decomposition from starting.
  
  Solutions:
  
  Check Resource Configuration: Verify that all resources are correctly configured in the system. Ensure that the resource master data is complete and accurate.
  Review Master Data: Check for any inconsistencies in the master data related to the resources and planning objects. Correct any discrepancies found.
  Validate Capacity Settings: Ensure that the capacity settings for the resources are correctly defined and that there are no conflicts.
  Examine Planning Version: Make sure that the planning version being used is valid and properly configured. If necessary, create a new planning version.
  Check for Locks: Investigate if there are any locks on the resources or planning objects. You can use transaction codes like SM12 to check for locks and release them if necessary.
  Run Planning in Debug Mode: If the issue persists, consider running the planning process in debug mode to gather more detailed information about where the error occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/OPTIMIZE for running optimization, and /SAPAPO/RESOURC for resource management.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Logs and Traces: Review the logs and traces generated during the planning run for more detailed error messages that can help pinpoint the issue.
  
  If the problem continues after trying the above solutions, it may be beneficial to consult with your SAP Basis or APO support team for further assistance.