How To Fix CNV_21527012 - Multiple lines with old logical system &1

CNV_21527012 - Overview

• Message type: E = Error

• Message class: CNV_21527 - Logical System Rename

• Message number: 012

• Message text: Multiple lines with old logical system &1

Self-Explanatory Message

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CNV_21527012 - Details

• The SAP error message CNV_21527012, which indicates "Multiple lines with old logical system &1," typically arises during data migration or conversion processes, particularly when using SAP's data migration tools. This error suggests that there are multiple entries in the source data that reference the same old logical system, which can lead to conflicts or inconsistencies during the migration process.
  
  Cause:
  
  Duplicate Entries: The primary cause of this error is the presence of duplicate entries in the source data that are associated with the same old logical system. This can happen if the data extraction process did not filter out duplicates or if the source system itself contains redundant records.
  Data Integrity Issues: There may be issues with data integrity in the source system, leading to multiple records being created for the same logical system.
  Incorrect Mapping: The mapping configuration in the migration tool may not be set up correctly, causing the system to misinterpret