This article explains how to login to Carpay as a dealer when the dealer doesn't have accesses to the DMS.
Managing Carpay from home, A different computer, or just not through the Dealer Management System?
Because Carpay is an online system that integrates with your DMS, you can log in and work your accounts through an online portal not attached to your DMS.
To do so, you must add a Carpay dealer user. To create a user, you must be logged in through your DMS first.