> ## Documentation Index > Fetch the complete documentation index at: https://docs.stackone.com/llms.txt > Use this file to discover all available pages before exploring further. # Slack OAuth 2.0 (User) connector profile – StackOne setup guide > Set up the OAuth 2.0 (User) connector profile for Slack in StackOne. One-time admin setup required before your users can link Slack accounts via Hub.
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Create a Slack app

Create a Slack app in the workspace you want to connect.

Sign in to your Slack account.

  • On the Your Apps page, click Create New App.
The Your Apps page with the Create New App button highlighted

In the Create new app dialog, under Or start your own way, select Blank app.

  • Click Continue.
The Create new app dialog with Blank app and Continue highlighted

In the Create from scratch dialog, enter the app details.

  • App name: `StackOne Integration`
  • Select your workspace from the Workspace dropdown.
  • Click Create. Slack opens the OAuth & Permissions page of your new app.
The Create from scratch dialog with the App name, Workspace and Create controls highlighted

Copy the app credentials

The Client ID and Client Secret identify your Slack app to StackOne.

In the sidebar under Settings, click Basic Information. The App Credentials section is at the top of the page.

  • Copy the Client ID value and paste it into the Client ID field in the StackOne Connector profile.
  • Click Show next to Client Secret, copy the value, and paste it into the Client Secret field in the StackOne Connector profile.
  • Store both values securely for use later.
  • Note: Clicking Regenerate next to Client Secret invalidates the current secret, and every connected account that uses this app must be reconnected.
The App Credentials section with the Client ID field and the Client Secret Show button highlighted

Configure OAuth

Register the StackOne redirect URL, turn on token rotation, and grant the scopes StackOne needs.

In the sidebar under Features, click OAuth & Permissions and scroll to Redirect URLs.

  • Click Add New Redirect URL.
  • Redirect URL: `https://api.stackone.com/connect/oauth2/slack/callback`
  • Click Add, then click Save URLs.
The Redirect URLs section with the StackOne callback URL entered and the Add button highlighted

Scroll to the top of the OAuth & Permissions page. Under Advanced token security via token rotation, click Opt In and confirm.

  • The Opt In button stays disabled until at least one redirect URL is saved.
  • Token rotation is required, because Slack issues refresh tokens only to apps that use it. Once turned on, it cannot be turned off.
  • You don't need to install the app manually. Slack installs it into each workspace when a user completes the OAuth flow from StackOne.
The Advanced token security via token rotation section with the Opt In button highlighted
Enables actions: Complete File Upload, Create Conversation, Delete File, Delete Message, Delete Scheduled Message, Get Conversation, Get File, Get File Upload URL, Get Message Permalink, Get Unified Group, Get Unified Organization, Get Unified User, Get User, Get User By Email, Get User Presence, Get User Profile, Invite Users To Conversation, Leave Conversation, List Conversation Members, List Conversations, List Files, List Messages, List Scheduled Messages, List Thread Replies, List Unified Groups, List Unified Organizations, List Unified Users, List User Conversations, List Users, Open Conversation, Remove User From Conversation, Rename Conversation, Revoke File Public URL, Schedule Message, Search Messages, Send Ephemeral Message, Send Message, Set User Presence, Set User Profile, Share File Public URL, Update Message

Scroll to Scopes. Under User Token Scopes, click Add an OAuth Scope and add each scope StackOne needs, one at a time:

The User Token Scopes section with the Add an OAuth Scope picker highlighted

The User Scopes field in the StackOne Connector profile tells StackOne which scopes to request.

  • Leave it empty if you added every scope listed in the previous step.
  • If you added only some of them, enter the same scopes separated by commas.
  • Example: `channels:read,chat:write,users:read`
## Creating the StackOne Connector Profile To create the Connector Profile in StackOne for Slack: Login to StackOne and navigate to [Connector Profiles](https://app.stackone.com/connector_profiles)
  • Click + Connector Profile
  • Search for and select Slack
  • Select Type as OAuth 2.0 (User)
  • Fill out the fields using details retrieved from your provider:
    • Client ID
    • Client Secret
    • User Scopes (Optional)
  • (Optional) Select Actions to be enabled for this Connector Profile
  • Click Create profile
 Congratulations! The new Connector Profile will now show up in your project ready to be used. You can now continue to Link Accounts for Slack. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.