When a user logs in to Spiff through their shopify admin panel on rare occasions you will be displayed with a usr login screen.
This shouldnt happen as the shopfiy store name (yourstore.myshopify.com) should always be the logged in user when you view spiff through the admin panel.
To Fix this issue, whilst you are on the login screen
To watch a video on how this is done click below
If this does not solve your problem please contact support on the following link spiff3d.com/contact-us