I had a problem with automatic migration, which I solved thank to this post
The asking user gave you an advice to update documentation, which seems still not to be updated. He or she also asked a question which I am facing now:
Please be more clear as what you mean by “disconnect your legacy database” in the last paragraph of the " Automatic User Migration with Custom Database Connection" document:
At this point, you can disconnect your legacy database ( not the Auth0 database). You will also want to keep Import Users to Auth0 (on the Settings page) enabled. Your users will then be directed to use the new database workflow.
Do we need to turn off the custom db connection under the application and turn on the “Username-Password-Authentication” connection? Or should we just leave everything(connections) as is, just remove our own Login/getUser script?