A multichannel notifications strategy is essential for companies that want to reach users across multiple channels and providers, as user preferences are dynamic and changing. Traditional approaches to managing notifications, such as limited channel notifications and custom channel support, fall short because they can be slow, expensive, and unsustainable. A future-proof multichannel notifications system should enable forward compatibility, integrate with existing tech, reroute messages to different channels, and scale with the company's size. Courier is a solution that empowers companies to build a custom multichannel strategy, providing APIs, SDKs, shortened development time, dynamic templates, and analytics to improve the notification experience for users.