Key Concepts
Permissions
Channel-based sharing: access comes from channel membership instead of per-file dialogs.
In Macro, who has access to what is controlled by what we call “channel-based” sharing. When you mention something it is shared with all members of the channel. If somebody is added to the channel, they gain access to everything shared in it; if they are removed, they lose that access.

This channel-based sharing prevents footguns that occur with Notion and Slack, or Notion and Docs, etc. where people don’t have access to things and need to request access. In Macro, it works like magic.
The exception to channel-based sharing is Teams, where there are special rules for the auto-sharing of Tasks, Emails and Calls. Auto-sharing ensures everybody on the team can, for example, see what tasks other engineers are working on without each task having to be explicitly shared in a channel.