CustomerSource is confirmed as an SA benefit for Dynamics customers with either active SA or an Online Subscription. And what is CustomerSource? In the words of the UK Dynamics site: “CustomerSource is a secure site that allows you to access job-tailored productivity tools including unlimited training courses and self-support resources like the knowledge base.”
That’ll be useful stuff to do with Dynamics products then. See page 76 of the November 2014 Product List.