# Data Retention

> How long behavioural data is kept, and the one thing deletion leaves behind.

Source: https://behavly.io/help-center/privacy/retention · Behavly Help Center · Data & Privacy

You set how long behavioural data is retained in **Settings → Account & Settings → AI & Privacy**. Your plan sets the ceiling on what you can configure — from 30 days up to a year.

#### What Deletion Leaves Behind

> Warning: Retention deletes **events**, not people. A person whose events have aged out keeps their row, but with nothing attached — no pages, no sessions, no device or country.

This is why visitor lists are windowed on **last seen** rather than first seen. It also means a very old contact can look like a tracking failure when it is simply a completed retention cycle.

See also: https://behavly.io/help-center/privacy/dsar, https://behavly.io/help-center/user-activity/lists-dont-add-up, https://behavly.io/help-center/plans/comparing-plans