- After setting up SSO, you can redirect the customers to any page on the store.
- Go to the Shopify Single Sign-On (SSO) application.

- Navigate to More Action >> Additional Settings option against the IDP you have configured.

- Go to Post Login Configurations tab, and enter the endpoint in this section where you want your customers to be redirected.

- Enter only the endpoint such as /cart or /collections.
- Save your Configurations.