This functionality enables you to restrict user logins depending on configured domains. You can allow/deny the user login based on the email domain.
Setup Instructions
Go to your Shopify store and navigate to the Apps Section and click on Single Sign On – SSO login application.
Navigate to the Store Access Restrictions section in the Advanced Settings.
Enable the Based on IDP User Profile Attributes feature. If the attribute name from IDP matches the blocked attribute value, the user will be redirected to the blocked page after they SSO into the Shopify Store.
Click on Save.
For example, if the Blocked attribute's name is "domain" and its value is "@gmail.com", and you have selected the EQUALS option, all customers with a @gmail domain will be redirected to the blocked page after SSO to the Shopify Store.
If you choose NOT EQUALS, all customers who do not have a @gmail domain will be redirected to the blocked page, while customers who do have a @gmail domain will be granted access to the store.