A Mutual Action Plan is a co-created, shared document that outlines all the milestones, owners, and deadlines required for both the buying and selling teams to reach a signed agreement by a target close date. The word 'mutual' is critical — a MAP only works if the prospect contributes to and commits to the plan, not just the seller. MAPs expose deal risk early (if a prospect won't engage with the MAP, they're unlikely to close), align internal champions, and give both sides a clear picture of what 'done' looks like.