A launch request is a marketing change — a new campaign, a pricing update, a page revision — submitted for review before it goes live, structured the same way a pull request works in software engineering: a defined change, reviewed by the right people, before it merges into production.
The term matters because it reframes a campaign launch from "something we did" to "something reviewed before it happened." A launch request makes explicit what’s changing, who needs to sign off, and what has to be true before it can ship.