Marketers measure digital channels in isolation from one another. However, consumers don't act within channels; they act across channels. Cross-channel measurement, a nice-to-have for most marketers today, will be table stakes in just a few years as its value in driving tangible benefits to the bottom line becomes increasingly clear. Marketers can achieve these benefits today by diving into cross-channel measurement full on: creating an analytics center of excellence, working with an agency on a cross-channel measurement strategy, or investing in a technology solution from companies like ClearSaleing or MarketShare Partners.