How To Fix FDT_EXPRESSIONS004 - Invalid boolean value &1; only X (true) and space (false) allowed

FDT_EXPRESSIONS004 - Overview

• Message type: E = Error

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

• Message number: 004

• Message text: Invalid boolean value &1; only X (true) and space (false) allowed

Self-Explanatory Message

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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 FDT_EXPRESSIONS004 - Invalid boolean value &1; only X (true) and space (false) allowed ?

  The SAP error message FDT_EXPRESSIONS004 indicates that there is an invalid boolean value being used in a context where only specific values are allowed. In SAP, boolean values are typically represented as 'X' for true and a space (' ') for false. This error occurs when a value other than these two is provided.
  
  Cause:
  The error is triggered when:
  
  A field or variable that is expected to hold a boolean value contains an invalid entry (e.g., 'Y', 'N', '1', '0', or any other character).
  There is a misconfiguration in the data being processed, such as incorrect mappings or data types.
  A custom expression or formula is incorrectly defined, leading to the use of an invalid boolean value.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check the Input Values: Review the values being passed to the boolean field. Ensure that only 'X' (for true) or a space (for false) is being used.
  
  
  Review Expressions and