# Profiles & Event Mutability for S3

Profiles enables organizations to enrich their behavioral data with new dimensions from S3 for expansive analyses. Event Mutability allows updating historical data ingested via S3, with automatic daily or twice-daily mutations of events, event properties, and user properties.

Source: https://amplitude.com/en-us/releases/profiles-event-mutability-for-s3

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DataMar 11, 2025

[\[All updates\]](/releases)

### Profiles & Event Mutability for S3

AJ Horst

**Description:** • Profiles: enables organizations to enrich their existing behavioral data with new dimensions from S3 to conduct more expansive analyses. • Event Mutability: Ability to update historical data that has been ingested via S3. Once set up, events, event properties, and user properties will be “mutated” automatically on a daily basis or twice daily basis.

**Why:** Ensure your product analytics data stays in perfect sync with changes in your data warehouse. This feature helps eliminate data drift and delivers the most accurate and up-to-date insights by ensuring you're always working from the single source of truth.

**Availability:** Data -> Sources

**Documentation:** [S3 Event Mutability](https://amplitude.com/docs/data/source-catalog/amazon-s3) & [Profiles](https://amplitude.com/docs/data/profiles#:~:text=Profiles%20enable%20you%20to%20merge,associated%20with%20a%20user%20profile)

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