B2B marketing teams are under pressure to deliver both tactical productivity and strategic growth, yet most companies have not defined why they have a marketing function or what it is expected to deliver. The B2B-Marketing-Purpose-On-A-Page Template provides a one-page, structured format to capture how marketing is perceived across responsibilities, priorities, decision rights, and metrics. Marketing leaders can use the template with cross-functional stakeholders to document marketing’s purpose zone: supporting, promoting, partnering, or driving. This template creates a starting point for evolving marketing’s role, clarifies its operating reality, aligns expectations, and identifies areas of misalignment.