How To Fix FDT_EXPRESSIONS645 - Amount and quantity types are not supported with single select

FDT_EXPRESSIONS645 - Overview

• Message type: E = Error

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

• Message number: 645

• Message text: Amount and quantity types are not supported with single select

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_EXPRESSIONS645 - Amount and quantity types are not supported with single select ?

  The SAP error message FDT_EXPRESSIONS645 indicates that there is an issue with the use of amount and quantity types in a single select expression within the SAP system. This error typically arises when trying to perform operations or calculations involving amount or quantity fields in a context that does not support them, such as a single select statement.
  
  Cause:
  
  Incompatible Data Types: The error occurs because the system does not support the use of amount and quantity types in a single select expression. This is often due to the way the data types are defined in the system.
  Expression Context: The context in which the expression is being evaluated may not allow for the use of these specific data types.
  
  Configuration Issues: There may be configuration settings in the SAP system that restrict the use of certain data types in specific contexts.
  
  
  Solution:
  
  
  Change the Expression: Modify the expression to avoid using amount or quantity types