In order to obtain access to the AT&T and Verizon punchout (purchasing) portals, you need to have been assigned the role of GU Requisitioner in GMS. The process to obtain a new role is automated in GMS, and the person in your department with the role of Finance Role Requester can complete the role request for you. (Finance Role Requesters can click here to view the Assign Roles Job Aid.
If you don't know who your Finance Role Requester is, contact your manager, or the appropriate Campus SME (Main Campus - Rachel Prusak; Med Campus - Muftiat Fahm; Law Center - Nadine Addo; University Services - Jon Hendrix) for assistance.