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

FDT_EXPRESSIONS640 - Overview

• 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

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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