I am thinking about it the whole week and could not grasp all the facts, especially at Shopify end. I asked the questions on their forum, contacted them directly. Nothing.
There are 2 main questions I am looking to get answers to:

• Can Shopify Plus acts as an Identity Service provider (physically store the users without using 3r party ISP) and allow other applications (including ours) to authenticate via SAML?
• Can Shopify (Plus or Non-Plus) authenticate users using Shopify accounts. Something like Shopify Social Connection. It appears so, according to Auth0 offering: https://auth0.com/docs/connections/social/shopify#set-up-app-in-shopify. This would require that our app is installed in Shopify as "Shopify Custom App"
  But I could not find any article about Shopify authenticating (installed app users), not apps via Oauth.

Hello, my first day with FusionAuth.
Installed it locally with PG, all good.
I would like to use FusionAuth to authenticate the users in my app (spring boot) using Shopfy store accounts. Shopify is using Oauth to authenticate apps. I haven't seen how to do that for users, but I have seen Auth0 saying that they have done it.

Is it possible to do this with FusionAuth? If so could you list the steps and docs on how to do that?

Thanks,
Milan