This document outlines a five-stage process for building a data-driven marketing strategy. The stages are: 1) Make data a habit by defining key performance indicators; 2) Audit your current data landscape to understand what data you have; 3) Identify gaps in your data and strategies to fill them; 4) Commit to improving data quality; and 5) Leverage technology to turn raw data into insights. Following these stages will help organizations avoid common pitfalls and create an effective data-driven marketing strategy.