How To Fix FDT_EXPRESSIONS509 - Invalid operator '&1' used with boolean type

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 509

• Message text: Invalid operator '&1' used with boolean type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS509 - Invalid operator '&1' used with boolean type ?

  The SAP error message FDT_EXPRESSIONS509 indicates that there is an invalid operator being used with a boolean type in an expression. This typically occurs in the context of SAP's Field Data Tool (FDT) or similar environments where expressions are evaluated.
  Cause:
  The error is caused by using an operator that is not compatible with boolean values. For example, boolean types can typically be combined using logical operators like AND, OR, and NOT. If you attempt to use arithmetic operators (like +, -, *, /) or other non-logical operators with boolean values, you will encounter this error.
  Solution:
  To resolve this error, you should:
  
  
  Review the Expression: Check the expression where the error occurs. Look for any operators that are being used with boolean values and ensure they are appropriate.
  
  
  Use Correct Operators: Replace any invalid operators with valid logical operators. For example:
  
  Use AND instead of +
  Use OR instead of |
  Use NOT instead of !
  
  
  
  Check Data Types: Ensure that the data types being used in the expression are compatible. If you are trying to combine boolean values with other types, make sure to convert them appropriately.
  
  
  Test the Expression: After making changes, test the expression to ensure that it evaluates correctly without errors.
  
  
  Related Information:
  
  Documentation: Refer to the SAP documentation for the Field Data Tool or the specific module you are working with to understand the valid operators and data types.
  Debugging: If you are unsure where the error is occurring, use debugging tools available in SAP to trace the execution and identify the problematic expression.
  Community Forums: Consider checking SAP community forums or support channels for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to resolve the FDT_EXPRESSIONS509 error and ensure that your expressions are correctly formulated.