In Slack, messages are shown when someone joins or leaves a channel to let other members know who’s coming and going. Workspace Owners and Workspace Admins can manage these messages and choose to turn them off if they’d like. By default, messages are shown when someone joins or leaves a channel.
What happens when a Slack channel is no longer relevant?
In Slack, teamwork happens in channels – organised spaces for everything related to a project, topic or team. If a channel is no longer relevant, members can choose to leave it at any time. No one can leave a workspace’s #general channel.
Slack will keep all messages and track message edits and deletions. Slack will keep all messages, but will not track message edits or deletions. Delete messages and their revisions after.
Does slack notify people when their notifications are paused?
These mentions won’t notify people when their notifications are paused, or when they’re used in threads. In channels with at least six members, Slack will ask you to confirm before you send a message with any of these mentions.
By default, Slack will retain all messages for the lifetime of your workspace. If permitted, members can set a custom message retention period for private channels and direct messages (DMs) that they’re a part of. Workspace Owners and Org Owners can also adjust retention settings for individual public channels.
Links, snippets, posts, uploaded files, replies in a thread, messages in archived channels, and messages from bot users all count towards your workspace’s total number of messages sent. Note: Deleted messages, Slackbot messages, and messages you send to your personal DM do not count towards the message limit.
Instead, try creating a private Slack channel (with a short retention setting!), getting the phone numbers of the people you want to chat with, and then messaging them on the encrypted messaging app Signal.
How do mentions work in slack channels?
In channels with at least six members, Slack will ask you to confirm before you send a message with any of these mentions. Owners and admins can turn this warning off. On the Enterprise Grid plan, these mentions work differently in channels. If there are 10,000 members or more, only owners and admins can use @channel and @here.