How To Fix FDT_EXPRESSIONS646 - Selection based on amount and quantity types are not supported

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 646

• Message text: Selection based on amount and quantity types are not supported

Self-Explanatory Message

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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_EXPRESSIONS646 - Selection based on amount and quantity types are not supported ?

  The SAP error message FDT_EXPRESSIONS646 indicates that there is an issue with the selection criteria in a financial document or report where both amount and quantity types are being used together in a way that is not supported. This typically occurs in the context of financial data processing, especially when using the Financial Data Management (FDM) tools or similar functionalities in SAP.
  
  Cause:
  The error arises when a selection is made that combines both amount and quantity types in a manner that the system does not support. This can happen in various scenarios, such as:
  
  Incompatible Data Types: Attempting to filter or select data using both monetary values (amounts) and physical quantities (like units of measure) in a single expression or condition.
  
  Configuration Issues: The configuration of the financial document or report may not allow for mixed-type selections.
  Custom Logic: If there is custom logic or expressions defined in the system that incorrectly combine these