Problem statement
User accounts contain a parameter that is “created_at”. Is it possible to migrate this parameter to another Auth0 tenant with the same value as before? Or is this value updated with the date and time of the migration?
Solution
You can export the created_at attribute for users, however, once the users are imported into another Auth0 tenant, the created_at will be set to the date/time when the import occurs.
This doc:
has a table of user profile attributes along with which attributes can be imported or exported.