How To Fix CNV_21527010 - Both old and new logical systems are initial

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_21527 - Logical System Rename

• Message number: 010

• Message text: Both old and new logical systems are initial

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_21527010 - Both old and new logical systems are initial ?

  The SAP error message CNV_21527010 indicates that both the old and new logical systems are not defined or initialized in the context of a data migration or conversion process. This error typically arises during the execution of a data migration project, particularly when using SAP's tools for data transfer or conversion.
  Cause:
  
  Uninitialized Logical Systems: The error occurs when the system cannot find valid entries for both the old and new logical systems in the configuration. This means that either the logical system names are not defined, or they are incorrectly specified.
  Configuration Issues: There may be issues in the configuration settings where the logical systems are supposed to be defined.
  Data Migration Settings: The settings for the data migration process may not have been properly set up, leading to the system not recognizing the logical systems.
  
  Solution:
  
  
  Check Logical System Configuration:
  
  Go to transaction SCC4 to check the logical system configuration.
  Ensure that both the old and new logical systems are defined and active in the system.
  
  
  
  Define Logical Systems:
  
  If the logical systems are not defined, you can create them using transaction SCC4.
  Make sure to assign the correct client to each logical system.
  
  
  
  Verify Data Migration Settings:
  
  Review the settings in the data migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, LSMW, etc.).
  Ensure that the logical system names are correctly specified in the migration settings.
  
  
  
  Check Transport Routes:
  
  If you are working in a landscape with multiple systems, ensure that the transport routes are correctly set up and that the logical systems can communicate with each other.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation related to the specific migration tool you are using for any additional configuration steps that may be required.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test run of the migration process to ensure that the error does not occur again.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SCC4 (Client Administration), SCC1 (Client Copy), and any specific transaction codes related to the migration tool you are using.
  SAP Notes: Check for any SAP Notes related to this error message for additional troubleshooting steps or patches that may resolve the issue.
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to resolve the error CNV_21527010 and successfully proceed with your data migration or conversion process.