Can I grant a user access to my Sell account only? Can I restrict someone's access to just the Sell product? Can my salesperson access Sell and no other Zendesk products? If I am a Sell user, does that mean I must occupy another Zendesk license as well?
Sell users and Sell admins can access the Support product as a Contributor. Even if you plan for your Sell users to only work in the Sell product, they will need restricted access to login to Zendesk Support.
For more information, see the articles: