How To Fix CNV40107008 - Duplicate target Logical System found: &1 => &2 and &3 => &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV40107 - Package 40107 - Logical System

• Message number: 008

• Message text: Duplicate target Logical System found: &1 => &2 and &3 => &4

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV40107008 - Duplicate target Logical System found: &1 => &2 and &3 => &4 ?

  The SAP error message CNV40107008 indicates that there are duplicate target logical systems in your system configuration. This typically occurs during data migration or system conversion processes, where the system identifies that two different source logical systems are trying to map to the same target logical system.
  Cause:
  The error arises when:
  
  Two or more source logical systems are configured to map to the same target logical system.
  This can happen due to incorrect configuration in the mapping settings or during the setup of the data migration project.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Duplicate Mappings:
  
  Review the mapping configuration for the logical systems involved. Check the source logical systems (&1 and &2) and the target logical systems (&3 and &4) mentioned in the error message.
  Use transaction codes like SICF, SMD, or any relevant transaction for your specific migration tool to check the logical system settings.
  
  
  
  Modify the Mapping:
  
  Ensure that each source logical system maps to a unique target logical system. If two source systems are incorrectly mapped to the same target, you will need to change one of the mappings.
  You may need to create a new target logical system if necessary.
  
  
  
  Check Configuration Settings:
  
  Go through the configuration settings in the relevant migration tool or project settings to ensure that there are no unintended duplicate entries.
  If you are using a specific migration tool (like SAP S/4HANA Migration Cockpit), check the configuration there.
  
  
  
  Test the Changes:
  
  After making the necessary adjustments, run the migration or conversion process again to ensure that the error is resolved.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to your specific migration tool for any additional guidance or best practices.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to logical system configuration, such as BD54 (for logical system configuration) and SCC4 (for client settings).
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or solutions related to this error.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By addressing the duplicate logical system mappings, you should be able to resolve the CNV40107008 error and proceed with your data migration or system conversion successfully.