Strategic Marketing Planning, Analytics, and Purpose Governance for Sustainable Brand Trust

This paper develops a governance-based explanation of how strategic marketing planning and marketing analytics can make sustainability positioning more credible when corporate purpose is legally embedded in the firm’s governing architecture. The study addresses a cross-disciplinary gap: marketing analytics research explains how firms sense markets, allocate resources, and monitor performance, while stakeholder governance scholarship explains why mission protection matters, yet neither tradition adequately specifies how legal purpose commitments become measurable brand-trust mechanisms. Using a theory-building, secondary qualitative design, the paper reinterprets published interview-based evidence on 20 certified B Corporation leaders in Australia and Aotearoa New Zealand together with official B Lab legal requirement documents. The analysis applies abductive thematic synthesis to connect constitutional purpose clauses and stakeholder clauses with strategic planning routines, signal design, and outcome measurement. The findings identify six purpose-enabled roles—Establishing, Applying, Developing, Announcing, Demonstrating, and Sharing—through which legally embedded purpose moves from governance text to market performance. The paper further develops a strategic marketing analytics architecture showing how these roles can be translated into measurable indicators, including trust conversion, stakeholder-fit, mission-consistent acquisition, complaint quality, partner alignment, and reputational resilience. The study contributes by positioning governance design as a market-facing capability rather than a background compliance issue, by integrating signaling theory with marketing control systems, and by showing that legal anchoring strengthens sustainability claims when planning routines and analytics visibly align with purpose. The paper concludes that sustainable brand trust is most durable when strategic planning, analytics, and stakeholder governance operate as one coordinated system rather than as separate legal, marketing, and reporting functions.