In this lesson we'll take a more in-depth look at the migrate module's UI with a focus on being able to identify and execute custom migrations. For now we'll work with the provided example migrations just so that we have something to work with. Throughout the lesson we'll learn how to run a migration to import it's data into Drupal, rollback a migration that was previously run in order to set a clean slate, and other ways we can interact with a migration via the UI. Then we'll discuss some of the challenges inherit in running migrations via the UI and Drupal's Batch API and how to identify them.
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This video covers a topic in Drupal 7 which may or may not be the version you're using. We're keeping this tutorial online as a courtesy to users of Drupal 7, but we consider it archived.