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Domain settings live in three places, depending on what you’re configuring.

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Workspace Domain

Configure under Settings → General → Workspace Domain. Edit your subdomain name or set a custom domain for your workspace.

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Customize Domain

  1. Click Customize Domain
  2. Edit your subdomain (e.g., yourcompany.twenty.com)
  3. Or set up a custom domain (e.g., crm.yourcompany.com)
For custom domains, you’ll need to configure DNS settings with your domain provider.

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Approved Domains

Configure under Settings → Members → Invite. Anyone with an email address at these domains is allowed to sign up for this workspace automatically.

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Add Approved Access Domain

  1. Click Add Approved Access Domain
  2. Enter your company domain (e.g., yourcompany.com)
  3. Save
Once configured, anyone with an email address at that domain can join your workspace without needing a direct invitation.
This is useful for allowing your entire team to self-register while keeping the workspace restricted to your organization.

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App Custom Domains

Configure under Settings → Apps → your app → Settings → App URL. Apps that expose routes on the web are served from a dedicated URL, shown in the App URL section. You can serve an app from a domain you own instead.

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Add Custom Domain

  1. Click Add Custom Domain
  2. Enter the domain you want to use (e.g., app.yourcompany.com)
  3. Configure DNS settings as instructed
  4. Verify the domain
Only that app’s routes are reachable on the domain. SSL certificates are provisioned automatically.