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# Cancel a migration session

Unisphere supports a migration application to provide a method for migrating data from a source storage system to a target storage system.

## Prerequisites

See Roles and associated permissions to determine the user roles that can perform this task.

There are two cancel options. Unisphere chooses one of the options depending on the migration session state.

The "Cancel without the revert flag" set operation requires the state of the migration session to be: Created, CreateFailed, or CutoverReady.

The "Cancel with the revert flag" set operation requires the state of the migration session to be: Migrating or CutoverSync.

## About this task

This procedure explains how to cancel a data migration session (from the source or target array).

See Understanding migration for additional information.

To cancel a migration session:

## Steps

1. Select the storage system.
2. Select Data Protection > Migrations.
3. Select the Sessions tab.
4. Select the storage group, click , and click Cancel Migration.
   A checkbox is displayed when Revert is being used and a dash is displayed when Revert is not being used.
   For a migration where the source is SAN WWNs, the source field displays the serial number of the source storage system.
5. Optional: Select the SymForce check box.
6. Review the summary and do one of the following:
   - Click Run Now to perform the operation now.
   - Expand Run Now and click Add to Job List to add this task to the job list, from which you can schedule or run the task at your convenience. For more information, see Schedule jobs and Preview jobs.