How To Fix FDT_EXPRESSIONS380 - &1 is not a valid boolean value; only "X" and " " are allowed

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 380

• Message text: &1 is not a valid boolean value; only "X" and " " are allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS380 - &1 is not a valid boolean value; only "X" and " " are allowed ?

  The SAP error message FDT_EXPRESSIONS380 indicates that there is an issue with a boolean value in your expression or configuration. Specifically, it states that the value provided is not valid, and only "X" (for true) and " " (for false) are acceptable boolean values.
  Cause:
  This error typically occurs in the context of using expressions in SAP applications, particularly when working with Field-Based Data Transformation (FDT) or similar functionalities. The root causes can include:
  
  Incorrect Value Assignment: A field or variable is being assigned a value that is not "X" or " ".
  Data Type Mismatch: The system expects a boolean value but receives a different data type (e.g., a string like "Yes" or "No").
  Configuration Errors: There may be a misconfiguration in the data transformation logic or rules where boolean values are expected.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Expression: Review the expression or configuration where the error is occurring. Ensure that any boolean fields are being assigned only "X" or " ".
  
  
  Data Validation: Validate the data being processed to ensure that it conforms to the expected boolean values. If the data source is providing values other than "X" or " ", you may need to implement a transformation or mapping to convert those values.
  
  
  Debugging: If you are using a custom expression or logic, debug the code to identify where the invalid value is being introduced. Use breakpoints or logging to trace the flow of data.
  
  
  Documentation Review: Consult the SAP documentation or help resources related to the specific module or functionality you are working with. This can provide insights into the expected formats and values.
  
  
  Testing: After making changes, test the configuration or expression thoroughly to ensure that the error is resolved and that the system behaves as expected.
  
  
  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.
  Field Data Types: Familiarize yourself with the data types and expected values for fields in the context of your specific SAP implementation.
  
  By following these steps, you should be able to identify and correct the issue causing the FDT_EXPRESSIONS380 error.