# Overview
Profiles centralize user data and events from multiple sources, such as Apps, Websites, and APIs, in a single place based on a custom user ID.
A unified user base made up of Profiles, anonymous or identified is associated with each Projects.
When a user interacts with any of the platforms within a Project, their actions are fed into the associated Profiles. For example, this allows you to trigger automated emails based on user behavior, regardless of which platform the user used.
Profiles also store engagement information such a user's email address and email subscriptions, making it easy for you to send targeted and relevant communications to your customers.
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**Profiles** are powering **Push V2**, email and SMS channels. Push V1 is powered by an installation based data model, siloed by platform (iOS, Android, Web).
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