How To Fix FDT_EXPRESSIONS059 - Initial boolean operand

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 059

• Message text: Initial boolean operand

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS059 - Initial boolean operand ?

  The SAP error message FDT_EXPRESSIONS059 with the description "Initial boolean operand" typically occurs in the context of using expressions in the SAP Fiori or SAP S/4HANA environments, particularly when working with the FDT (Form Data Tool) or similar functionalities that involve expressions or conditions.
  Cause:
  This error usually arises when there is an issue with the boolean expression being evaluated. Specifically, it indicates that the expression is missing an initial operand, which means that the expression is not properly formed. This can happen due to:
  
  Syntax Errors: The expression may have been written incorrectly, such as missing a variable or operand before a logical operator (AND, OR, etc.).
  Empty Variables: If the expression references a variable that is not initialized or is empty, it can lead to this error.
  Incorrect Logic: The logical structure of the expression may not be valid, leading to an inability to evaluate it correctly.
  
  Solution:
  To resolve the FDT_EXPRESSIONS059 error, you can take the following steps:
  
  
  Check the Expression Syntax: Review the expression for any syntax errors. Ensure that all operands are correctly defined and that there are no missing components.
  
  
  Initialize Variables: Make sure that all variables used in the expression are initialized and have valid values before the expression is evaluated.
  
  
  Review Logical Operators: Ensure that the logical operators are used correctly and that there are no misplaced operators that could lead to an incomplete expression.
  
  
  Test the Expression: If possible, test the expression in a simpler context to isolate the issue. This can help identify whether the problem lies with the expression itself or with the data being passed to it.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific context in which you are working (e.g., FDT, Fiori, etc.) to understand the expected syntax and structure for boolean expressions.
  
  
  Debugging: If you have access to debugging tools, use them to step through the code and see where the expression is being evaluated and what values are being passed.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes or Knowledge Base Articles that may address this specific error or provide additional context.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify and correct the issue causing the FDT_EXPRESSIONS059 error.