You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract 'Omni-Channel' Is Coming: Make Big Shifts in Your Agency, or Be Left Behind Customers Will Expect a Seamless Route Among All Retail-Purchase Options By Paul Elliott, Published on June 21, 2013 7 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.