This module integrates Views and Migrate and allows you to create reports using Views.
Once enabled, you'll be able to create Views from migrate_map_* and migrate_message_* tables.
Views relationships are available to join entity tables if the migrate destination plugin is an EntityContentBase.
It also contains an id_map plugin migrate_views_sql that will store 2 additional serialized columns containing:
- the source data (array before the process pipeline ran)
- the destination data (array after process pipeline ran)
The "serialized" Views field can be used to show data (or a certain key) from those columns.
A Drush 9 command migrate_views:generate is available to auto-generate Views for migration(s).
Once a View with the same machine name than a migration exists, a View details link will be available
in the List migration UI (admin/structure/migrate/manage/your_group/migrations)
You will need the following patch to use the migrate_views_sql id_map plugin:
https://www.drupal.org/project/migrate_plus/issues/2944627