Attempting to Enable Import Mode Returns Error: 'You Cannot Change "options.enabledDatabaseCustomization" setting'

Problem Statement

If a database connection contains users, attempting to enable Automatic Migration and connect to an external database, it returns the following error in the Dashboard:

Error! This database contains users. You cannot change “options.enabledDatabaseCustomization” setting.


Using Automatic Migration to migrate users from an external database into a regular database that has users is not supported.


The alternatives for this use case would be to import the users through Bulk User Import, or to use a second database connection to import the users through automatic migration.

Related References: