I work for a technology solutions and consulting company and we just did a migration from Sharepoint Server 2010 to 2013, then to Sharepoint Server 2016. They have 60 licenses to office 365 essentials.
We are having trouble figuring out the software licensing costs for users because another company set up the hardware and is telling us it is $30 one time cost per user to have a SharePoint seat. My customer has about 1500 people that need access to the SharePoint site, but only about 50 people with active directory e-mails that can log in. When we try to share a page with someone who isn't in active directory, the site will not allow us to send them access.
I guess the main questions are what are the costs associated with licenses for SharePoint 2016 Server per user? and do we have to pay this licensing fee for people who aren't in active directory, but need to have read-only access to the SharePoint for policies and procedures?