Last updated July 15, 2019

As part of creating a custom Drupal-to-Drupal migration we want to limit the set of users that are migrated from our source site into Drupal 8. In this tutorial we'll:

  • Extend the existing source plugin
  • Alter the query that's used to select users from our source site
  • Update our user migration to use the new source plugin

By the end of this tutorial you should be able to override the core source plugins used when migrating from prior versions of Drupal in order to gain more control over exactly what is migrated.