How To Fix CNV_MBT387 - Could not add users from previous package

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 387

• Message text: Could not add users from previous package

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_MBT387 - Could not add users from previous package ?

  The SAP error message CNV_MBT387 ("Could not add users from previous package") typically occurs during a data migration or system conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system encountered an issue while trying to add users from a previous package, which can be related to several factors.
  Causes:
  
  Missing User Data: The user data that the system is trying to reference may not exist in the previous package or may have been deleted.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to access or modify user data.
  Inconsistent Data: There may be inconsistencies in the user data between the source and target systems, such as missing roles or profiles.
  Technical Issues: There could be technical issues with the migration tool or the underlying database that prevent the addition of users.
  
  Solutions:
  
  Check User Data: Verify that the user data exists in the previous package. Ensure that all necessary users are present and correctly configured.
  Review Authorizations: Ensure that the user performing the migration has the appropriate authorizations to access and modify user data. You may need to assign additional roles or permissions.
  Data Consistency Check: Perform a consistency check on the user data to ensure that all required roles and profiles are assigned correctly. You can use transaction codes like SU01 or SU10 to review user profiles.
  Log Analysis: Check the migration logs for more detailed error messages that can provide insights into what went wrong. This can help identify specific users or data that are causing the issue.
  Retry Migration: After addressing any identified issues, retry the migration process to see if the error persists.
  SAP Notes: Check for any relevant SAP Notes or updates that may address this specific error. SAP frequently releases patches and updates that can resolve known issues.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the Migration Cockpit or the specific migration tool you are using for detailed guidelines and troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Support Tickets: If the issue persists and you have a support contract with SAP, consider opening a support ticket for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the CNV_MBT387 error effectively.