How To Fix FDT_EXPRESSIONS640 - Invalid value &1 for Distinct flag: needs to be true or false

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 640

• Message text: Invalid value &1 for Distinct flag: needs to be true or false

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS640 - Invalid value &1 for Distinct flag: needs to be true or false ?

  The SAP error message FDT_EXPRESSIONS640 indicates that there is an issue with the value provided for the "Distinct" flag in a data processing context, likely within the context of SAP Fiori or SAP Data Intelligence. The error message specifies that the value for the Distinct flag must be either true or false, and the value provided is invalid.
  Cause:
  The error typically arises when:
  
  The Distinct flag is set to a value that is not recognized as a boolean (e.g., a string, number, or any other invalid value).
  There may be a typo or misconfiguration in the expression or data transformation logic where the Distinct flag is being set.
  The system is expecting a boolean value but is receiving an unexpected type or format.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Expression/Configuration:
  
  Review the expression or configuration where the Distinct flag is being set. Ensure that it is explicitly set to either true or false.
  If you are using a variable or parameter to set this flag, ensure that it is correctly defined and that it evaluates to a boolean value.
  
  
  
  Correct the Value:
  
  If the value is hardcoded, change it to true or false.
  If the value is derived from another source, ensure that the source is providing a valid boolean value.
  
  
  
  Test the Changes:
  
  After making the necessary changes, test the configuration or expression again to ensure that the error is resolved.
  
  
  
  Consult Documentation:
  
  If you are unsure about the expected values or the context in which the Distinct flag is used, refer to the relevant SAP documentation or help resources for guidance.
  
  
  
  Debugging:
  
  If the issue persists, consider enabling debugging or logging to trace the flow of data and identify where the invalid value is being introduced.
  
  
  
  Related Information:
  
  SAP Fiori: If you are working within an SAP Fiori application, ensure that the UI5 version and libraries are up to date, as sometimes bugs in older versions can lead to unexpected behavior.
  SAP Data Intelligence: If this error occurs in a data pipeline or transformation, check the data types and ensure that all transformations are correctly defined.
  SAP Community: You can also search for similar issues in the SAP Community forums, where other users may have encountered and resolved the same error.
  
  By following these steps, you should be able to identify and correct the issue causing the FDT_EXPRESSIONS640 error.