Outlook.com + Outlook Web App

Microsoft set out to unify its consumer and commercial Outlook web experiences into a single platform, creating one of the largest customer migrations in the company's history. The initiative required more than combining products—it demanded a unified experience that could meet the distinct needs of nearly one billion consumer and enterprise mailboxes while maintaining customer trust throughout the transition.

As Product Design Manager, I led the experience strategy for the convergence of Outlook.com and Outlook Web App, partnering closely with Engineering, Product Management, and User Research to define a shared product vision. Rather than simply combining features, we evaluated the strengths of each experience, identified opportunities to simplify complexity, and created a cohesive interaction model that served both consumer and enterprise customers without compromising the needs of either audience.

Recognizing that consumer adoption would ultimately determine the success of the migration, we prioritized reducing barriers to change through thoughtful interaction design, familiar workflows, and progressive onboarding strategies that gave customers confidence throughout the transition.

The 18-month effort culminated in the successful migration of nearly one billion mailboxes to a unified Outlook experience, establishing a model for large-scale product convergence at Microsoft while achieving minimal customer attrition and exceeding growth objectives.

The work below highlights key milestones in the evolution toward a single Outlook experience serving customers across consumer, education, small business, and enterprise markets.