How To Fix CNV_21527013 - Possible merge of logical systems &1 and &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_21527 - Logical System Rename

• Message number: 013

• Message text: Possible merge of logical systems &1 and &2

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 CNV_21527013 - Possible merge of logical systems &1 and &2 ?

  The SAP error message CNV_21527013 indicates a potential issue with the merging of logical systems in a system conversion or data migration scenario. This error typically arises during the process of data transfer or system conversion when the system detects that two logical systems (identified by &1 and &2) may be merged, which can lead to data inconsistencies or conflicts.
  Cause:
  
  Duplicate Logical Systems: The error usually occurs when there are two logical systems that are being treated as the same or are attempting to merge data that should remain distinct.
  Configuration Issues: There may be configuration settings that are incorrectly set, leading the system to believe that the two logical systems can be merged.
  Data Migration Process: During data migration, if the same data is being transferred to two different logical systems, the system may flag this as a potential merge issue.
  
  Solution:
  
  Review Logical System Configuration: Check the configuration of the logical systems involved. Ensure that they are correctly defined and that there are no duplicates.
  Data Consistency Check: Perform a consistency check on the data being migrated. Ensure that there are no overlapping records or data that could cause conflicts.
  Adjust Migration Settings: If you are using a migration tool or process, review the settings to ensure that it is not attempting to merge data from two distinct logical systems.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration or conversion process you are undertaking. There may be specific guidelines or best practices to follow.
  Engage SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration and the migration process.
  
  Related Information:
  
  Logical Systems: In SAP, logical systems are used to identify different systems in a landscape. Each logical system should have a unique identifier.
  Data Migration Tools: Familiarize yourself with the tools and methodologies used for data migration in SAP, such as SAP S/4HANA Migration Cockpit or SAP Data Services.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.