How To Fix FDT_EXPRESSIONS480 - Invalid comparison with a boolean type parameter

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 480

• Message text: Invalid comparison with a boolean type parameter

What causes this issue?

You have defined a value comparison where a boolean parameter is
involved. However, the type of comparison you have chosen is not
supported for the comparison of boolean values. Boolean values can only
be compared in terms of an equality check (i.e., is equal or is not
equal).

System Response

The expression containing the comparison cannot be activated.

How to fix this error?

To proceed, do one of the following:
If the boolean parameter has been chosen by mistake, replace it by a
parameter of the proper type.
If the boolean parameter has been chosen intentionally, make sure to use
either 'is equal' or 'is not equal' as comparison type.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS480 - Invalid comparison with a boolean type parameter ?

  The SAP error message FDT_EXPRESSIONS480 indicates that there is an invalid comparison being made with a boolean type parameter in your expressions or calculations within the SAP system, particularly in the context of SAP Fiori or SAP S/4HANA applications that utilize the FDT (Form Data Tool) framework.
  Cause:
  This error typically arises when:
  
  A boolean value (true/false) is being compared to a non-boolean value in an expression.
  The expression syntax is incorrect, leading to an invalid comparison.
  The logic in the expression does not align with the expected data types.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Expression: Check the expression where the error occurs. Ensure that any comparisons involving boolean parameters are valid. For example, if you are comparing a boolean value, ensure that you are only comparing it to another boolean value.
  
  
  Correct Data Types: Make sure that the data types being compared are compatible. If you are comparing a boolean with a string or number, you will need to adjust the logic to ensure both sides of the comparison are of the same type.
  
  
  Use Proper Syntax: Ensure that the syntax of your expression is correct. For example, if you are using logical operators (AND, OR), ensure they are used correctly in the context of boolean values.
  
  
  Debugging: If you are unsure where the error is occurring, use debugging tools available in the SAP environment to trace the execution of the expression and identify the exact point of failure.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific version you are using to understand the expected syntax and data types for expressions.
  
  
  Testing: After making changes, test the expression thoroughly to ensure that it behaves as expected and does not produce further errors.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed.
  FDT Documentation: Review the official SAP FDT documentation for guidelines on creating expressions and handling data types.
  
  By following these steps, you should be able to identify and correct the cause of the FDT_EXPRESSIONS480 error in your SAP application.