How To Fix KW801 - Error in original definition of hierarchy

SAP Error Message - Details

• Message type: E = Error

• Message class: KW - CO-ABC Activity-Based Costing

• Message number: 801

• Message text: Error in original definition of hierarchy

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 KW801 - Error in original definition of hierarchy ?

  The SAP error message KW801, which states "Error in original definition of hierarchy," typically occurs in the context of SAP BW (Business Warehouse) or SAP CO (Controlling) when there is an issue with the hierarchy definition in a characteristic or a master data object. This error can arise due to various reasons, such as inconsistencies in the hierarchy structure, missing nodes, or issues with the data model.
  Causes of KW801 Error
  
  Inconsistent Hierarchy Structure: The hierarchy may have been modified, and the changes have not been properly reflected in the system.
  Missing Nodes: Some nodes in the hierarchy may be missing or incorrectly defined, leading to inconsistencies.
  Data Model Issues: There may be issues with the underlying data model or master data that the hierarchy is based on.
  Transport Issues: If the hierarchy was transported from one system to another, there may have been issues during the transport process.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access or modify the hierarchy.
  
  Solutions to KW801 Error
  
  
  Check Hierarchy Definition:
  
  Go to the hierarchy maintenance transaction (e.g., RSH1 for SAP BW) and verify the hierarchy structure.
  Ensure that all nodes are correctly defined and that there are no missing or orphaned nodes.
  
  
  
  Rebuild the Hierarchy:
  
  If the hierarchy is corrupted, consider rebuilding it from scratch or restoring it from a backup if available.
  
  
  
  Check for Transport Issues:
  
  If the hierarchy was recently transported, check the transport logs for any errors or warnings that may indicate issues during the transport.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the master data and hierarchy to identify and resolve any inconsistencies.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access and modify the hierarchy.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to hierarchies in your specific module (BW, CO, etc.) for additional troubleshooting steps.
  
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSH1 (Hierarchy Maintenance), RSH2 (Hierarchy Display), and RSH3 (Hierarchy Deletion).
  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, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to identify and resolve the KW801 error in your SAP system.