Influencer marketing glossary

Influencer marketing has a vocabulary that mixes advertising, analytics, and creator-economy terms. This glossary defines the terms that matter when choosing and operating an influencer marketing platform.

Terms

• Influencer marketing platformSoftware that manages the full creator campaign workflow — discovery, briefing, contracting, approval, attribution, and payment — in one place rather than across separate tools.
• Influencer discovery toolA tool that surfaces and filters creators by audience demographics, topical relevance, engagement, and audience-quality signals — rather than by follower count alone.
• Brand collaboration platformA platform that manages ongoing relationships between brands and creators — briefs, contracts, deliverables, attribution, and recurring deals — as a roster rather than a series of one-offs.
• Campaign management softwareSoftware that batch-handles the operational steps of a creator campaign — briefing, contracting, approval, deliverable tracking, and attribution — so a wave of creators can be managed without collapse.
• Attribution windowThe period after a creator post during which a conversion is credited to that creator. Short windows under-credit creators whose content converts after a research delay.
• Earned media valueThe value of reach a creator generates beyond their paid audience — reshares, saves, and comments that travel organically. The metric most often missing from influencer reports.
• Cost per acquisition (CPA)Total creator cost (fee plus seeding plus coordination) divided by attributed conversions. The number that lets you rank creators and decide where to reinvest.
• Micro-influencerA creator with roughly 10,000 to 100,000 followers, typically outperforming larger creators on engagement rate, conversion, and cost per acquisition.