How To Fix FDT_EXPRESSIONS784 - Errors in the assigned &1 need to be corrected first:

FDT_EXPRESSIONS784 - Overview

• Message type: E = Error

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

• Message number: 784

• Message text: Errors in the assigned &1 need to be corrected first:

Self-Explanatory Message

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FDT_EXPRESSIONS784 - Details

• The SAP error message FDT_EXPRESSIONS784 typically indicates that there are issues with expressions or conditions defined in the context of the Flexible Data Import (FDI) or Flexible Data Transfer (FDT) framework. This error suggests that there are errors in the assigned expressions that need to be corrected before proceeding.
  
  Cause:
  
  Syntax Errors: There may be syntax errors in the expressions defined in the FDT configuration.
  Invalid References: The expressions might reference fields or variables that do not exist or are incorrectly defined.
  Logical Errors: There could be logical inconsistencies in the expressions that prevent them from being evaluated correctly.
  Data Type Mismatches: The expressions may involve operations on incompatible data types.
  
  
  Solution:
  
  Review Expressions: Go to the FDT configuration and review the expressions assigned to the relevant fields. Check for any syntax errors or invalid references.
  Correct Syntax: Ensure that the syntax of the expressions is correct. Refer to the SAP documentation for the correct syntax and usage