How To Fix DMC_IU050 - An import has already been started in client &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_IU - DMC: Messages for Integrated Upgrade

• Message number: 050

• Message text: An import has already been started in client &1

What causes this issue?

An import in the target-client has already been started. So it is not
possible to start a transfer.
If at least one workstep has already been executed after the export in
the target-client, a transfer of the export from another client is not
possible any more.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_IU050 - An import has already been started in client &1 ?

  The SAP error message DMC_IU050 indicates that an import process has already been initiated in the specified client (denoted by &1). This typically occurs in the context of data migration or data import processes, particularly when using tools like SAP Data Migration Cockpit or SAP Landscape Management.
  Cause:
  
  Concurrent Import Processes: The error usually arises when a user attempts to start a new import while another import process is still running in the same client. SAP does not allow multiple import processes to run simultaneously to prevent data inconsistencies and conflicts.
  Session Timeout or Incomplete Process: If an import process was started but did not complete (due to a timeout, error, or manual interruption), the system may still consider it active.
  System Locking Mechanism: SAP has built-in mechanisms to lock certain operations to ensure data integrity, which can lead to this error if not properly managed.
  
  Solution:
  
  
  Check Active Processes: 
  
  Use transaction codes like SM37 (Job Monitoring) to check for any active background jobs related to the import process. If you find an active job, you may need to wait for it to complete or terminate it if it is stuck.
  
  
  
  Review Import Logs: 
  
  Check the logs of the previous import process to identify if it completed successfully or if there were errors that need to be addressed.
  
  
  
  Terminate Stuck Processes: 
  
  If you determine that an import process is stuck, you can terminate it using transaction SM37 or SM50 (Process Overview) to end the session.
  
  
  
  Wait for Completion: 
  
  If another user is running an import, you may need to wait until that process is completed before starting your own.
  
  
  
  Client-Specific Considerations: 
  
  Ensure that you are working in the correct client and that no other users are performing imports in that client.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message. SAP frequently updates its documentation and may have specific recommendations for your version.
  Documentation: Review the documentation for the specific data migration tool you are using, as it may provide additional insights into managing import processes.
  User Permissions: Ensure that you have the necessary permissions to start and manage import processes in the SAP system.
  
  If the problem persists after following these steps, consider reaching out to your SAP Basis team or SAP support for further assistance.