Price paid per engagement, where an engagement is a like, comment, share, save, follow, or expand, as defined by the platform. CPE is the pricing unit for social engagement objectives and is easily inflated by cheap engagements that carry no business value, so it is a diagnostic rather than a goal for most advertisers.
Related terms
Cite this entry:
Agency Echelon. "Cost Per Engagement." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/cost-per-engagement/