How to delete data from posthog
One can remove unwanted data from posthog by:
- Deleting teams/organizations
- Deleting persons
This can be done either under settings pages (1) or under persons & groups pages (2).
When deleting individual persons, you can also choose to delete all of their events. When deleting teams, all data under the team (including events) are automatically removed.
Asynchronous data deletion
While most data in PostHog is deleted instantly, event data is not. Instead data is cleared asynchronously during non-peak usage times (weekends on PostHog Cloud).
This is done because data deletion in ClickHouse is expensive and it can impact performance for other users.
On self-hosted, asynchronous deletions happen according to the CLEAR_CLICKHOUSE_REMOVED_DATA_SCHEDULE_CRON environment variable (defaults to Sunday 5AM UTC). Read more on environment variables here