To protect the integrity of repository metadata, the Copy Deployment Group Wizard does not allow you to copy a deployment group when objects targeted for replacement are checked out or locked. Before you copy a deployment group, search for checkouts in the target repository and verify that no deployment target objects are checked out.
You can freeze the target deployment folder to ensure that no target objects are checked out when you copy a deployment group. When you freeze a folder, other users cannot check out objects in the folder, but the wizard can still copy and check in deployment group objects. Change the folder status to Frozen, Allow Deploy.
If the repository stops unexpectedly during the copy operation, the Repository Service rolls back changes. However, the deployment group objects may be copied to the target repository but not checked in. If this happens, the objects will be stored in the repository as checked-out objects. To complete the copy operation, view checkouts and manually check in the objects.