What we back up:
Users
Channels
Messages
Threads
Note: Due an API constraint we will only back up the first 1000 messages in a thread.
Attachments
Direct messages that the user has access to
What we don't back up:
Direct messages between other users
Channels that the user doesn’t have access to
Group membership & permissions
Workflows
Note: The reason that some of these data types are not backed up is because they are not made available in Slack's API. As soon as these data types are available through the API we will add them to the backup scope.