16-2539 Ratification by the Board of Education of Service Order between the District and Zendesk, San Francisco, CA, for the latter to provide the subscription services, Enterprise Quarterly Service, Tal Advance Quarterly, and Chat Advance Quarterly, to implement Talent Call Center, via the Talent Department, for the period of November 4, 2016, through June 30, 2017, in an amount not to exceed $19,007.31.