Headless checkout SSO is now documented with sso=silent

We’ve updated our headless checkout authentication docs to refer to the silent single sign-on query parameter as sso=silent instead of logged_in=true.

This is a terminology and documentation update only. Existing checkout URLs that use logged_in=true will continue to work. Going forward, Shopify docs and examples will use sso=silent when describing the silent SSO flow from a headless storefront to checkout.

Learn more about authenticating buyers in checkout.