How To Fix CNV_40300016 - Asset class &1 occurs in mapping as old value and as new value

CNV_40300016 - Overview

• Message type: E = Error

• Message class: CNV_40300 - Message class for package 40300 (ANLKL)

• Message number: 016

• Message text: Asset class &1 occurs in mapping as old value and as new value

Self-Explanatory Message

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CNV_40300016 - Details

• The SAP error message CNV_40300016 indicates that there is a conflict in the mapping of asset classes during a data migration or conversion process. Specifically, it suggests that the same asset class is being used both as an old value and a new value in the mapping configuration, which is not allowed.
  
  Cause:
  The error typically arises in the context of data migration projects, particularly when using SAP's Conversion Tools (like the SAP S/4HANA Migration Cockpit or other data migration tools). The root causes can include:
  
  Duplicate Mapping Entries: The asset class is defined in both the old and new mappings, leading to confusion in the conversion process.
  Incorrect Configuration: The mapping configuration may have been set up incorrectly, where the same asset class is mistakenly assigned as both the source and target.
  Data Integrity Issues: There may be issues with the data being migrated, such as inconsistencies or duplicates in the source data.
  
  
  Solution:
  To resolve