How To Fix FDT_WD_EXPRESSION044 - Invalid character/s or incorrect operand sequence found in logic schema

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_WD_EXPRESSION -

• Message number: 044

• Message text: Invalid character/s or incorrect operand sequence found in logic schema

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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_WD_EXPRESSION044 - Invalid character/s or incorrect operand sequence found in logic schema ?

  The SAP error message FDT_WD_EXPRESSION044 indicates that there is an issue with the logic schema in your SAP application, specifically related to an invalid character or an incorrect operand sequence in an expression. This error typically arises in the context of using the SAP Fiori or SAP UI5 applications where expressions are defined for data binding or calculations.
  Causes:
  
  Invalid Characters: The expression may contain characters that are not allowed or recognized by the expression parser.
  Incorrect Operand Sequence: The order of operands and operators in the expression may not conform to the expected syntax. For example, missing operators, misplaced parentheses, or incorrect data types.
  Syntax Errors: General syntax errors in the expression can lead to this error message.
  Unsupported Functions: Using functions or methods that are not supported in the context of the expression can also trigger this error.
  
  Solutions:
  
  Review the Expression: Carefully check the expression for any invalid characters or syntax errors. Ensure that all operators and operands are correctly placed.
  Check Data Types: Ensure that the operands used in the expression are of compatible data types. For example, trying to perform arithmetic operations on string values can lead to errors.
  Use Supported Functions: Verify that all functions used in the expression are supported in the context where you are using them.
  Debugging: If possible, use debugging tools to step through the logic schema and identify the exact point of failure.
  Documentation: Refer to the SAP documentation for the specific version you are using to understand the correct syntax and supported features for expressions.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on expressions and logic schemas in the context of your specific SAP application.
  
  By following these steps, you should be able to identify and resolve the issue causing the FDT_WD_EXPRESSION044 error in your SAP application.