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The Madison Avenue Field GuideA field guide to marketing & advertising, by Brandon Mina

GlossaryPrivacy & IdentityCustomer Data Platform (CDP)

Privacy & Identity

Customer Data Platform (CDP)

Software that unifies customer data from many sources into persistent profiles.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

A customer data platform (CDP) is software that collects customer data from many sources, such as websites, apps, CRM and point-of-sale systems, and unifies it into persistent individual profiles. Marketers use those profiles to build audience segments, personalize messaging and send consistent data to advertising, email and analytics tools while managing consent.