Fullstory Anonymize Users API

Implementation Files: This document covers core concepts. For code examples, see:

• SKILL-WEB.md — JavaScript/TypeScript (Browser)
• SKILL-MOBILE.md — iOS, Android, Flutter, React Native

Overview

Fullstory's Anonymize Users API allows developers to release the identity of the current user and create a new anonymous session. This is essential for:

• User Logout: Properly ending an identified session when a user logs out
• Account Switching: Allowing users to switch between accounts cleanly
• Privacy Compliance: Implementing "forget me" or privacy-conscious features
• Shared Devices: Ensuring one user's session doesn't bleed into another's

When you anonymize a user, the current session ends and a fresh anonymous session begins. The previously identified user remains in Fullstory's records, but subsequent activity is no longer linked to them.