How To Fix CNV_PE620 - Parameter &1 is already assigned as a link parameter

CNV_PE620 - Overview

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 620

• Message text: Parameter &1 is already assigned as a link parameter

Self-Explanatory Message

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CNV_PE620 - Details

• The SAP error message "CNV_PE620 Parameter &1 is already assigned as a link parameter" typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This error indicates that a parameter you are trying to assign is already linked to another parameter, which can lead to conflicts in the data processing logic.
  
  Cause:
  
  Duplicate Assignment: The parameter you are trying to assign has already been assigned as a link parameter in the current context. This can happen if the same parameter is being used in multiple places or if there is an attempt to create a circular reference.
  
  Configuration Issues: There may be issues in the configuration of the data migration project, where parameters are not properly defined or are conflicting with each other.
  Data Model Conflicts: If the data model being used for the migration has overlapping or conflicting definitions, it can lead