Hi @redwards
Welcome to the Auth0 Community!
Reading through the following Knowledge Article, importing of hashed passwords is supported, as long as they were only hashed once and not looped multiple times.
As further reference, allow me to link a couple more documentations and posts on this matter, in case they come in handy:
- Sha512 custom password specifying iterations?
- Importing users with custom password hash
- Bulk User Import Database Schema and Examples
- Bulk User Imports
Hope this helped!
Gerald