How To Fix FDT_EXPRESSIONS106 - The node &1 cannot be moved underneath itself (recursion)

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 106

• Message text: The node &1 cannot be moved underneath itself (recursion)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS106 - The node &1 cannot be moved underneath itself (recursion) ?

  The SAP error message FDT_EXPRESSIONS106 indicates that there is an attempt to move a node in a hierarchical structure (like a tree or a list) underneath itself, which creates a recursive relationship. This is not allowed because it would create an infinite loop in the hierarchy.
  Cause:
  The error typically occurs in the context of working with expressions or nodes in the SAP Fiori Design Time (FDT) or similar environments where hierarchical data structures are used. The specific cause of this error is:
  
  Self-referencing Move: You are trying to move a node (or element) to a position that is a descendant of itself, which is logically incorrect and leads to recursion.
  
  Solution:
  To resolve this error, you should:
  
  
  Check the Move Operation: Review the operation you are trying to perform. Ensure that you are not attempting to move a node to a position that is already a child or descendant of that node.
  
  
  Change the Target Position: If you need to reorganize the hierarchy, select a different target position for the node that does not create a recursive relationship.
  
  
  Validate Hierarchy: Before performing move operations, validate the hierarchy to ensure that the structure remains valid and does not lead to self-referencing.
  
  
  Debugging: If you are working with custom code or configurations, add debugging statements to track the node's position before and after the move operation to ensure it is not being incorrectly referenced.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for FDT or the specific module you are working with for more details on hierarchical structures and node management.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  SAP Notes: Look for any relevant SAP Notes that might address this specific error or provide additional context or fixes.
  
  By following these steps, you should be able to resolve the FDT_EXPRESSIONS106 error and successfully manage your hierarchical data structure without recursion issues.