Is it possible to login a customer using Shopify API without multipass?

I’ve read the documentation and the following situation is not clear to me:

A user creates an account in my non-shopify site. We create a shopify customer based on their credentials (admin API).

We want then to redirect the user to my shop.shopify.com and log them in based on those credentials.

Is that posible without multipass?

The closest things I’ve seen:

  • customerAccessTokenCreate but that would not log in the customer, most likely just help me update it.

  • Customer API helps with headless stores, but this case is the storefront, and is passwordless

Thank you

I have the same question. Curious if you’ve figured out a solution here.