How To Fix CNV_DMC_WDA063 - Staging tables of the migration object are locked for data transfer

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 063

• Message text: Staging tables of the migration object are locked for data transfer

What causes this issue?

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

System Response

Editing data records is not allowed for these staging tables.

How to fix this error?

Finish the data transfer, or click Restart Transfer on the Migration
Object Details screen to reset the transfer status and unlock the
staging tables.
You can then edit the data records of the staging tables.

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 CNV_DMC_WDA063 - Staging tables of the migration object are locked for data transfer ?

  The SAP error message CNV_DMC_WDA063 indicates that the staging tables of the migration object are locked for data transfer. This typically occurs during a data migration process using the SAP Data Migration Cockpit or similar tools, where the system is unable to access the necessary staging tables due to a lock.
  Cause:
  
  Active Data Transfer: Another process or user might be currently using the staging tables, causing them to be locked.
  Incomplete Previous Migration: A previous migration process may not have completed successfully, leaving the tables in a locked state.
  System Configuration Issues: There may be configuration issues or settings that prevent the unlocking of the staging tables.
  
  Solution:
  
  
  Check for Active Processes:
  
  Use transaction code SM12 to check for any active locks on the staging tables. If you find any locks that are not being used, you can delete them (ensure that you have the necessary authorizations and that it is safe to do so).
  
  
  
  Review Migration Logs:
  
  Check the logs of the migration process to identify if there were any errors or issues that caused the tables to remain locked.
  
  
  
  Restart the Migration Process:
  
  If the previous migration process was interrupted, you may need to restart it. Ensure that all previous sessions are closed and that the system is ready for a new data transfer.
  
  
  
  System Restart:
  
  In some cases, a system restart may help to clear any lingering locks, especially if they are due to a system hang or similar issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration or version.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks) and SLG1 (to view application logs) for troubleshooting.
  Migration Object Documentation: Review the documentation for the specific migration object you are working with to understand its requirements and any known issues.
  SAP Notes: Check the SAP Support Portal 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 resolve the CNV_DMC_WDA063 error and proceed with your data migration process.