Sage 50C Canadian is an all-in-one program whether you are using Pro Premium or Quantum. Job Sites (Projects), Inventory and Services, Accounts Receivable and Inventory are all included no extra purchase required. If they are not showing on the Home Screen, you will have to turn them on Setup>User Preferences>View The ones you are missing just need a check mark to make them work. However, there may be one other restriction and that is in the User Login which may be restricted if you don't have full accounting rights or at least for the modules you need. The Administrator has to sign in and make the changes for this Setup>Set Up Users> sysadmin login>Add User or Modify User and then check the services required.