For most campaign teams, shifting from campaign planning into execution is a challenging transition. Stakeholders across marketing, product, sales, and postsale customer engagement must work together to synthesize their experience and data-driven insights to narrow the range of possible initiatives that the campaign will develop and execute. In this report, we introduce Forrester’s Degrees Of Influence Process, a cross-functional exercise that helps identify and prioritize the primary factors that influence customers’ initiation and renewal purchase decisions.