TL;DR: Atlassian deactivates inactive free Jira and Confluence sites after 40 days, providing warnings on days 26 and 33, with permanent data deletion occurring on day 55. Users can prevent deactivation through UI activity and request data restoration within 14 days of deactivation via Atlassian Billing support. The risk of data loss can be partially mitigated by regularly taking and downloading backups of your app.
