How To Fix FDT_EXPRESSIONS863 - Parametername &1 is used twice in function &2 only 1 mapping is possible

FDT_EXPRESSIONS863 - Overview

• Message type: E = Error

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

• Message number: 863

• Message text: Parametername &1 is used twice in function &2 only 1 mapping is possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS863 - Parametername &1 is used twice in function &2 only 1 mapping is possible ?

  The SAP error message FDT_EXPRESSIONS863 indicates that there is a problem with the mapping configuration in your SAP system, specifically within the context of the Function Module or Expression used in the Data Transformation (DT) process. The error message states that a parameter name is being used more than once in a function, which is not allowed.
  
  Cause:
  The error occurs when:
  
  A parameter name (denoted as &1 in the error message) is defined multiple times within the same function (denoted as &2).
  This can happen if you have inadvertently duplicated a parameter in the mapping configuration or if there is a misconfiguration in the function module.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Review the Mapping Configuration:
  
  Open the mapping where the error is occurring.
  Check the parameters defined in the function. Look for any duplicate parameter names.
  
  
  
  Rename or Remove Duplicates:
  
  If you find that the same parameter name is used more than once, you will