The three main challenges are identifying the right influencers to work with, determining effective engagement tactics, and measuring the performance of influencer programs. It can be difficult to identify influencers as traditional media outlets have reduced staffing, influencers receive many irrelevant pitches, and engagement tactics that worked previously may not be effective again or for other topics. Demonstrating the value of influencer marketing through measurement is also a challenge as it can be difficult to prove it generates the economic value needed to secure larger budgets.