How To Fix UPS1092 - Hierarchy contains more than one top node

SAP Error Message - Details

• Message type: E = Error

• Message class: UPS1 - SEM-BPS Status and Tracking System Messages

• Message number: 092

• Message text: Hierarchy contains more than one top node

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UPS1092 - Hierarchy contains more than one top node ?

  The SAP error message UPS1092, which states "Hierarchy contains more than one top node," typically occurs in the context of SAP systems that utilize hierarchical data structures, such as those found in SAP Business Planning and Consolidation (BPC) or SAP BW (Business Warehouse). This error indicates that the hierarchy you are trying to work with has multiple top nodes, which is not allowed in a proper hierarchical structure.
  Cause:
  
  Multiple Top Nodes: The primary cause of this error is that the hierarchy you are trying to create or manipulate has more than one node that is considered a "top" node. In a valid hierarchy, there should only be one top node (the root) from which all other nodes branch out.
  Incorrect Data Structure: The data structure may have been incorrectly defined or imported, leading to multiple nodes being treated as top nodes.
  Configuration Issues: There may be issues with the configuration of the hierarchy in the system, such as incorrect parent-child relationships.
  
  Solution:
  
  Review Hierarchy Structure: Check the hierarchy structure to identify the nodes that are being treated as top nodes. You can do this by examining the hierarchy in the relevant transaction or report.
  Adjust Parent-Child Relationships: Ensure that there is a single top node and that all other nodes are correctly linked to it. You may need to adjust the parent-child relationships to create a valid hierarchy.
  Delete or Merge Nodes: If there are unnecessary top nodes, consider deleting or merging them into a single top node.
  Recreate the Hierarchy: If the hierarchy is too complex or corrupted, it may be easier to recreate it from scratch, ensuring that you only define one top node.
  Check for Data Imports: If the hierarchy was created through a data import, check the source data for any issues that may have led to multiple top nodes being created.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may use transaction codes like RSH1 (for creating hierarchies) or RSH2 (for displaying hierarchies) in SAP BW.
  Documentation: Refer to SAP documentation or help guides specific to the module you are working with (e.g., BPC, BW) for detailed instructions on managing hierarchies.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.