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Shared channels let two separate organizations work together in a single channel, each from their own Slack workspace. Use shared channels to focus your communication with organizations you work with regularly, like clients, vendors, and partners. With this feature, we've taken added precautions to protect your privacy and keep your workspace or Enterprise Grid org secure.
Shared channel invitations
Accept an invitation
Only owners and admins can receive invitations to share channels with external organizations.
Standard and Plus plans: Workspace Owners and Admins can receive invitations
Enterprise Grid plan: Org Owners and Admins can receive invitations
An invitation to share a channel will include the external organization's name, the sender's email address, and sometimes a message with more details. Use this info to identify the sender and confirm that someone from your workspace or Enterprise Grid org needs access to this channel.
Decline an invitation
If you're unsure what a proposed shared channel is for or who the invitation is from, you have a few options:
Don't accept the invitation. You can decline any invitation your receive.
Email the sender for clarification using the address included in the request.
Ask your members for more info about the request if they're already working with the sender in some capacity.
Message editing and deletion settings for your workspace or Enterprise Grid org will apply to shared channels. For example, A Workspace Admin can delete messages sent by members of their workspace, but not those sent from a member of an external organization.
Export tools and Data Loss Protection (DLP)
On the Standard and Plus plans, Workspace Owners and Admins can use Standard Export to export content from shared channels. On the Plus plan, Workspace Owners can apply to access Corporate Export to export content all shared channels (public or private) and the related direct messages shared across two workspaces.
Both workspaces can read content or data posted in a shared channel, but only the workspace that sent the data may edit or delete it from Slack.