How To Fix FDT_EXPRESSIONS564 - Invalid condition &1 (position &2); boolean type required

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 564

• Message text: Invalid condition &1 (position &2); boolean type required

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS564 - Invalid condition &1 (position &2); boolean type required ?

  The SAP error message FDT_EXPRESSIONS564 indicates that there is an issue with a condition in a decision table or expression where a boolean type is expected, but the provided condition does not meet this requirement. This error typically arises in the context of SAP's Flexible Decision Table (FDT) framework, which is used for defining complex business rules.
  Cause:
  The error occurs when:
  
  A condition in a decision table is defined incorrectly, such that it does not evaluate to a boolean value (true/false).
  The condition might be using an incorrect data type or an invalid expression that cannot be evaluated as a boolean.
  There may be a syntax error or logical error in the expression that leads to this issue.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check the Condition: Review the condition that is causing the error. Ensure that it is structured correctly and that it evaluates to a boolean value. For example, conditions should typically be in the form of comparisons (e.g., A > B, C = 'X').
  
  
  Data Types: Ensure that the data types used in the condition are compatible. If you are comparing different types, make sure they can be implicitly converted to a common type that supports the comparison.
  
  
  Syntax Review: Look for any syntax errors in the expression. Ensure that all operators and functions are used correctly.
  
  
  Debugging: If the condition is complex, consider breaking it down into simpler parts to isolate the issue. Test each part of the condition separately to see where it fails.
  
  
  Documentation: Refer to the SAP documentation for the Flexible Decision Table framework to understand the expected formats and types for conditions.
  
  
  Consult with Colleagues: If you are unsure about the logic or syntax, consult with colleagues or SAP experts who may have experience with FDT.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on this error.
  FDT Documentation: Review the official SAP documentation for Flexible Decision Tables to understand the expected structure and types for conditions.
  Community Forums: Consider searching or posting on SAP community forums or platforms like SAP Community, where other users may have encountered similar issues.
  
  By following these steps, you should be able to identify and correct the issue causing the FDT_EXPRESSIONS564 error.