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If your organization already used the earlier Claude in Slack, including Claude Code in Slack, Claude Tag replaces it. Your existing Slack app and @Claude handle stay, and no data migrates. What changes is who Claude acts as and who sets it up.

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Switch your workspace to Claude Tag

1

Connect the workspace in the Claude console

Open claude.ai/admin-settings/claude-tag. If your workspace isn’t paired, run the setup wizard; otherwise you’re already on Claude Tag. Once paired, channels and linked-user DMs answer with the New version by default; no per-channel action is needed.
2

Check for channels still on Legacy

In the Claude Tag’s access section, look at the Claude Tag version on each scope. Pairing defaults every scope to New, so this is usually empty; set any showing Legacy to New.
3

Give Claude its connections

The New version starts with no access of its own. GitHub repositories and other connections do not carry over from individual users’ linked accounts, so code requests in a switched channel have nothing to clone until you configure them. Follow the setup overview to add connections, and GitHub access for code work specifically.
4

Tell your users

Send them Get started. The visible change is that work now belongs to the channel; see What existing users notice after the switch below.
You’ll see: the workspace appears under Where Claude Tag works, and the Claude Tag version on each scope shows New.

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If @Claude doesn’t respond at all

On Enterprise Grid, an earlier install can lose its connection and stop responding in every workspace. Don’t uninstall the app. Have a Slack Org Owner or Org Admin, while signed in to one of the workspaces (not the org-level admin page), open claude.com/claude-for-slack, select Add to Slack, and choose Install to entire organization. This refreshes the connection in place. Then send @Claude connect as a new top-level channel message with no other text (as a reply inside a thread, the command is treated as a normal request) and continue with step 1 above.
The earlier Claude in Slack app, shown as Legacy in admin settings, is being deprecated; check with your account team for the cutover date. After that date, channels still set to Legacy stop responding until the scope’s Claude Tag version is set to New.

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What stays the same

  • The Slack app and the @Claude handle. Your existing Claude in Slack settings (allowed users, verified-domain restriction) carry over. If your earlier install predates a permission Claude now uses, @Claude connect says so when you pair; a Slack admin clicks the install link in that reply and approves the consent screen, which installs over the existing app. Otherwise no app-side action is needed.
  • Direct messages still run on the user’s own claude.ai account, the same way they did before. The shift to a shared identity applies to channels.
  • Users who already linked their claude.ai account keep that connection. It is what powers their DMs.

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How Claude Tag differs from the earlier app

The earlier app linked each user’s own claude.ai account, so it answered as that person and used their connectors. Claude Tag has one identity for the team, provisioned by an admin who also sets what it can reach in each channel.
Legacy (the earlier Claude in Slack)New (Claude Tag)
IdentityEach user links their own claude.ai accountOne agent identity with org-level service credentials
SessionsSpawned per requestOne persistent session per thread, shared with the channel
MemoryNoneShared workspace memory plus private-channel memory
Standing workNoneRoutines and channel watching
Who sets it upEach user, individuallyAn Owner, once
The Claude Tag version setting on each scope lets you pin a channel or workspace to Off, Legacy, or New, or Inherit the organization default. Use it to hold specific channels on the Legacy behavior while you finish provisioning, then switch them when ready. Access bundles only apply where the New version answers. See the version setting for the control. Both versions answer through the same @Claude app, so setting a scope to Off turns off the earlier version there too. To opt out of Claude Tag while keeping the earlier behavior, set the scope to Legacy, not Off.

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What existing users notice after the switch

In channels, the visible difference is that work belongs to the channel, not to whoever asked. Anyone can reply in a thread to steer it, and the result stays where the team can see and pick it up. Code work is authored by the Claude GitHub App rather than as the requesting user. A user who never linked a claude.ai account can now hand Claude work in channels, by default. Whether that stays open or narrows to organization members is the admin’s access restriction setting. If @Claude in a channel still opens pull requests under the asker’s name, that channel is answering with the Legacy version; check the scope’s Claude Tag version setting.