Shared channel security and policies

Shared channels let separate organizations work together in a single channel, each from their own Slack workspace. Use shared channels to communicate with external 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 requests

Approve a request to share a channel

The request to share a channel must be approved by both workspaces before the channel is connected. By default, only these individuals can approve a request to share a channel:

  • Standard and Plus plans: Workspace Owners and Workspace Admins 
  • Enterprise Grid plan: Org Owners and Org Admins 

A shared channel request will include the name of the external organization and the person who sent you the request. Use this information to identify the sender and confirm that someone from your workspace or Enterprise Grid org needs access to this channel.


Decline a request to share a channel

If you're unsure what a proposed shared channel is for or who the request is from, you have a few options:

  • Don't accept the request to share a channel. You can decline any request your receive.
  • Ask your members for more information if they're already working with the person who sent you the request in some capacity.
  • Contact the person who sent you the request for clarification.


Message and file retention

Retention settings chosen for your workspace or Enterprise Grid org will apply to the messages and files sent by members of your organization in shared channels. Anything sent by members of an external organization in shared channels will be retained or deleted based on the retention settings chosen for their workspace or Enterprise Grid org.


Message editing and deletion

Message editing and deletion settings for your workspace or Enterprise Grid org will apply to messages sent in shared channels by members of your organization. For example, an owner or 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 Workspace 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 from 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 sends the data can edit or delete it from Slack.

On the Enterprise Grid plan, Org Owners can use eDiscovery and DLP solutions for reviewing and regulating content. In shared channels, only messages and files sent by members of your organization can be regulated and deleted with DLP solutions.

Note: Keep in mind that if an external organization has applied custom retention settings for their workspace or Enterprise Grid org, this will impact the data to be read or exported.