Slack will delete messages after 90 days. Slack will keep all messages, but will not track message edits or deletions. Keep all messages, but don't track revisions.Workspace Owners can choose from the following options when setting message retention for conversations: If you delete a channel, messages and revisions will be permanently deleted, regardless of your workspace retention settings. Note: Retention does not apply to messages in deleted channels. Retention settings will apply to all messages and files, including ones that are pinned or saved.Deletions run once a day, so data may be deleted shortly after making a change to your retention settings.You can choose to keep messages and files, or delete them after 90 days. On the free plan, your options for data retention are limited.Message and file deletion is permanent.You can also allow members to edit the message retention settings for individual channels and direct messages (DMs). If you’d like, you can adjust your retention settings to automatically delete messages and files after a set amount of time.

By default, Slack will retain all messages and files (including audio and video clips) for the lifetime of your workspace.

Messages go