# Manual migration

A manual migration consists of three stages: selecting the environments, reviewing the selection, and running the migration.

## Selecting environments

### About this task

Two tree views are displayed: the source tree on the left and the target tree on the right.

### Procedure

1. In the source tree, select the checkboxes of the environments to migrate.

   Selecting an environment also selects all spaces and engines of the environment.
2. Click the right arrow button.

   The selected environments are moved to the target tree.

   ![Selecting environments.](https://help.qlik.com/Resources/Images/qlik-talend-cloud-migration-toolkit-user-guide/Environment_Selection.png) To remove an environment that has not yet been migrated from the target tree, select the asset and click the left arrow button.

## Reviewing the selection

### Procedure

1. Click Review.

   A summary of the selected assets is displayed.
2. Review the counts on the review screen:
   * Total Environments
   * Total Spaces
   * Total Engines
   * Remote Engines
   * Engine Clusters
   * Dynamic Engines
3. Optionally, enter a comment in the Comment field.
4. In the right panel, verify the target tree structure.

   ![Environment review.](https://help.qlik.com/Resources/Images/qlik-talend-cloud-migration-toolkit-user-guide/Environment_Review.png)

## Running the migration

### Procedure

Click Migrate to begin the migration.

The migration progress screen displays real-time status updates for each asset. For more information, see [Migration behavior](https://help.qlik.com/en-US/migration/migration-behavior-environments-region-mover).