How To Fix CNV_PE817 - Parameter &1 must not have type &2

CNV_PE817 - Overview

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 817

• Message text: Parameter &1 must not have type &2

Self-Explanatory Message

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CNV_PE817 - Details

• The SAP error message CNV_PE817 indicates that a parameter in a conversion or migration process is being assigned a type that is not allowed. Specifically, the message states: "Parameter &1 must not have type &2," where &1 represents the parameter name and &2 represents the type that is causing the issue.
  
  Cause:
  This error typically arises during data migration or conversion processes, particularly when using SAP's tools for data transfer (like SAP S/4HANA Migration Cockpit or other conversion tools). The root causes can include:
  
  Incorrect Data Type Assignment: The parameter in question is being assigned a data type that is not compatible with the expected type for that parameter.
  
  Configuration Issues: There may be misconfigurations in the migration settings or mapping definitions.
  Data Model Changes: If the underlying data model has changed (for example, in a system upgrade), the expected types for certain parameters may have changed as well.
  
  
  Solution:
  To resolve the CNV_PE817 error, you can