I have been tasked with creating reports of users with the licenses they have. I have been successful in finding Force.com users, Marketing users, Knowledge Users, Content Users, Service Cloud users, Call Center users, and Avantgo users however, I have not been successful in finding a field that references the Apttus CPQ license. I've been using Workbench to find this information. How can I find all users with the Apttus CPQ license? I've tried reviewing fields in the UserProfile, User, and UserLicense objects and still have not had any luck. Could someone point me in the right direction?