This document provides guidance on upgrading Google AdWords campaigns to enhanced campaigns. It describes what enhanced campaigns are and their benefits. It then outlines the steps to plan and perform the upgrade, including ensuring access to accounts, reviewing tools, identifying matching campaigns, and determining the upgrade flow for each campaign. The flows include a simple one-by-one upgrade, a bulk upgrade using AdWords Editor, and a merge flow for matching campaigns. It provides examples and discusses post-upgrade steps like setting mobile bid adjustments and monitoring performance.