How To Fix /SAPAPO/CDPSOPT808 - Topological sorting

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CDPSOPT -

• Message number: 808

• Message text: Topological sorting

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CDPSOPT808 - Topological sorting ?

  The SAP error message /SAPAPO/CDPSOPT808 related to "Topological sorting" typically occurs in the context of Advanced Planning and Optimization (APO) within SAP systems. This error is often associated with issues in the planning process, particularly when dealing with dependencies between different activities or processes in a production or supply chain scenario.
  Cause:
  The error message /SAPAPO/CDPSOPT808 indicates that there is a problem with the topological sorting of the activities or processes in the planning run. This can happen due to several reasons:
  
  Cyclic Dependencies: There may be circular dependencies among the activities, which makes it impossible to establish a clear order of execution.
  Missing or Incorrect Data: Required data for the activities may be missing or incorrectly defined, leading to issues in establishing dependencies.
  Configuration Issues: Incorrect configuration in the planning setup or master data can lead to problems in the planning run.
  Inconsistent Data: Inconsistencies in the data related to the production process, such as routing or bill of materials (BOM), can also cause this error.
  
  Solution:
  To resolve the /SAPAPO/CDPSOPT808 error, you can take the following steps:
  
  
  Check for Cyclic Dependencies:
  
  Review the dependencies between the activities in your planning run. Ensure that there are no circular references that would prevent proper sorting.
  
  
  
  Validate Master Data:
  
  Ensure that all relevant master data (e.g., materials, BOMs, routings) is correctly defined and complete. Check for any missing or incorrect entries.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the APO system. Ensure that the planning area and other relevant settings are correctly configured.
  
  
  
  Analyze the Planning Run:
  
  Use transaction codes like /SAPAPO/SDP94 or /SAPAPO/SDP95 to analyze the planning run and identify any specific issues that may be causing the error.
  
  
  
  Consult Logs and Traces:
  
  Review the logs and traces generated during the planning run for any additional error messages or warnings that could provide more context on the issue.
  
  
  
  Test with Simplified Data:
  
  If possible, try running the planning process with a simplified dataset to isolate the issue. This can help identify whether the problem is data-related or configuration-related.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP support for further assistance. Provide them with detailed information about the error and the context in which it occurs.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP APO documentation for best practices in setting up planning runs and managing dependencies.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the /SAPAPO/CDPSOPT808 error in your SAP APO system.