What actually changes
As a marketing manager you likely execute campaigns across channels. Product marketing zooms out: you own how a product is positioned, why it beats alternatives, and how sales tells that story. The center of gravity shifts from 'run the campaign' to 'define the message the whole company uses.'
Skills to sharpen
Get deliberate about positioning frameworks, competitive analysis, customer research, and sales enablement (decks, battlecards, launch plans). Being able to interview customers and distill a sharp, differentiated message is the single most valued PMM skill.
The path in
The cleanest route is an internal move at a company with a product org, or joining a smaller startup where marketing and PMM are the same job. Lead your pitch with a launch you owned and the positioning decisions behind it. Check your general AI career readiness with five questions about your experience, motivation, available time, and timeline. This assessment does not evaluate fit for a specific role.