How To Fix FDT_EXPRESSIONS112 - Result only at leaves set: Node &1 has a result, but it is no leaf node

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 112

• Message text: Result only at leaves set: Node &1 has a result, but it is no leaf node

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS112 - Result only at leaves set: Node &1 has a result, but it is no leaf node ?

  The SAP error message FDT_EXPRESSIONS112 indicates that there is an issue with the expression evaluation in the context of the Field Data Tool (FDT) or similar functionality in SAP. The specific message states: "Result only at leaves set: Node &1 has a result, but it is no leaf node." This typically means that the expression tree has nodes that are expected to be leaf nodes (i.e., nodes that do not have any children) but are returning results, which is not allowed.
  Cause:
  
  Expression Structure: The error usually arises when the structure of the expression is not correctly defined. A non-leaf node (a node with children) is returning a result, which violates the expected behavior of the expression evaluation.
  Incorrect Configuration: There may be a misconfiguration in the expression or the way it is set up in the FDT. This could involve incorrect logic or conditions that lead to non-leaf nodes being evaluated as if they were leaf nodes.
  Data Model Issues: If the underlying data model or the way data is being processed is not aligned with the expected structure, it can lead to this error.
  
  Solution:
  
  Review Expression Logic: Check the expression logic to ensure that only leaf nodes are returning results. You may need to adjust the logic to ensure that non-leaf nodes do not produce results.
  Check Node Configuration: Verify the configuration of the nodes in the expression. Ensure that the nodes are correctly defined as either leaf or non-leaf based on their intended functionality.
  Debugging: Use debugging tools available in SAP to trace the execution of the expression and identify where the non-leaf node is incorrectly returning a result.
  Consult Documentation: Refer to SAP documentation or help resources related to FDT and expression handling to understand the expected structure and behavior of expressions.
  Testing: After making changes, thoroughly test the expression to ensure that it behaves as expected and does not produce the error again.
  
  Related Information:
  
  Field Data Tool (FDT): This is a tool used in SAP for managing and processing data fields, including expressions and rules.
  Expression Trees: Understanding how expression trees work in SAP can help in diagnosing issues related to node evaluations.
  SAP Notes and Community: Check SAP Notes for any known issues or patches related to this error. The SAP Community forums can also be a valuable resource for finding solutions from other users who have encountered similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.