Microsoft 365 Copilot promises to bring generative AI to knowledge workers from right inside the programs many use daily, such as Word, Excel, PowerPoint, or Teams. Because of its value proposition, we forecast that nearly 6.9 million US knowledge workers will adopt Microsoft 365 Copilot by the end of 2024. To do so, you must first persuade your CFO that there’s a business case. Next, you must identify the benefits, costs, and risks, then measure and track them. Our decision tool and models will help build, then track, your core business case. We find that the break-even point for your investment can be achieved if employees save as few as two hours a month in productivity.