How To Fix CNV20200147 - There exist already mapping entries

CNV20200147 - Overview

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 147

• Message text: There exist already mapping entries

Self-Explanatory Message

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CNV20200147 - Details

• The SAP error message CNV20200147, which states "There exist already mapping entries," typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there are already existing mapping entries in the system for the data you are trying to import or convert, which can lead to conflicts or duplication.
  
  Cause:
  
  Duplicate Mapping Entries: The most common cause of this error is that the mapping entries you are trying to create already exist in the target system. This can happen if the migration process has been run previously or if there are overlapping data sets.
  Incorrect Data Preparation: If the source data has not been properly prepared or cleaned, it may lead to attempts to create mappings that already exist.
  
  Configuration Issues: There may be issues with the configuration of the migration project or the mapping settings that lead to conflicts.
  
  
  Solution:
  
  Check Existing Mappings: