How To Fix KG591 - Inconsistent relationship between nodes at the same level (& and &)

SAP Error Message - Details

• Message type: E = Error

• Message class: KG - CO-PA Planning

• Message number: 591

• Message text: Inconsistent relationship between nodes at the same level (& and &)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message KG591 - Inconsistent relationship between nodes at the same level (& and &) ?

  The SAP error message KG591, which states "Inconsistent relationship between nodes at the same level (& and &)," typically occurs in the context of SAP Controlling (CO) when dealing with cost center hierarchies or other organizational structures. This error indicates that there is a problem with the relationships between nodes (e.g., cost centers, internal orders) at the same hierarchical level.
  Cause:
  The error can be caused by several factors, including:
  
  
  Incorrect Hierarchical Structure: There may be inconsistencies in the way nodes are related to each other. For example, two nodes at the same level may have conflicting relationships or may not be properly linked.
  
  
  Missing or Incorrect Assignments: Nodes may not be assigned correctly within the hierarchy, leading to inconsistencies.
  
  
  Data Integrity Issues: There may be issues with the underlying data, such as duplicate entries or incorrect configurations.
  
  
  Changes in Hierarchy: If changes were made to the hierarchy (e.g., adding or removing nodes), it may not have been updated correctly across all relevant areas.
  
  
  Solution:
  To resolve the KG591 error, you can follow these steps:
  
  
  Check Hierarchical Structure:
  
  Review the hierarchy in the relevant transaction (e.g., OKEQ for cost center hierarchy).
  Ensure that all nodes at the same level are correctly related and that there are no missing links.
  
  
  
  Validate Assignments:
  
  Verify that all nodes are assigned correctly and that there are no orphaned nodes or nodes with incorrect parent-child relationships.
  
  
  
  Use Transaction Codes:
  
  Use transaction codes like OKEB (for cost center hierarchy) to check and adjust the hierarchy.
  You can also use transaction KSH1/KSH2 to create or change cost centers and ensure they are correctly assigned.
  
  
  
  Data Consistency Check:
  
  Run consistency checks to identify any data integrity issues. This can often be done through specific reports or tools within SAP.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific version you are using, as there may be known issues or patches available.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists, consider reaching out to SAP support for assistance, especially if it appears to be a bug or a more complex issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OKEQ (for maintaining cost center hierarchies) and KSH1/KSH2 (for creating and changing cost centers).
  SAP Notes: Check SAP Notes for any updates or patches related to this error message.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the inconsistency causing the KG591 error in your SAP system.