Migrating a standalone WordPress site to a site network (or “multisite”) environment is a tedious and tricky endeavor, the opposite is also true. The WordPress Importer works reasonably well for smaller, simpler sites, but leaves room for improvement. It exports content, but not site configuration data such as Widget and Customizer configurations, plugins, and site settings. The Importer also struggles to handle a large amount of content. In this article, you’ll learn how to streamline this type of migration by using MU-Migration, a WP-CLI plugin.