Slack best practice states:

" Before creating a new workspace in Enterprise Grid, make sure you have a Workspace Admin available to manage settings, users, and day-to-day operations. "

Without a responsible Workspace Admin, new workspaces can become chaotic or mismanaged.

(Reference: Slack Administration Study Guide - Workspace Creation Best Practices)

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Slack’s internal app management documentation states:

" Adding internal app collaborators allows trusted users to manage an app’s configuration, including OAuth settings, scopes, and other integration behaviors without needing Org Admin privileges. "

There is no need to promote SMEs to Org Admins (B) — which would give them excessive permissions across the entire Slack environment. A and C do not enable them to manage the app directly.

(Reference: Slack Administration Study Guide - Managing Internal Apps and App Collaborators)

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Moving sales channels into the Global workspace and making default channels private would:

Create confusion and friction in adoption.

Reduce transparency and cross-functional collaboration.

Slack documentation highlights:

" Workspaces should be structured to align naturally with how teams operate. Making core channels private may limit discoverability and collaboration, which contradicts Slack’s goals for connection and transparency. "

Options B, C, and D promote transparency and collaboration, which is the intended use of Slack across cross-functional teams.

(Reference: Slack Administration Study Guide - Change Management and Slack Adoption Strategies)

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In Enterprise Grid, an org-wide channel is intended for communications relevant to all members across all workspaces. Slack documentation states:

" Org-wide channels are automatically shared with every workspace in your organization and should be used for information that applies to everyone, such as company-wide announcements. "

Since a cross-functional project would involve specific participants and not the entire organization, a multi-workspace channel is a more appropriate and flexible solution.

(Reference: Slack Administration Study Guide - Enterprise Grid Channels and Communication Best Practices)

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According to Slack ' s official documentation on Enterprise Mobility Management (EMM):

" When EMM is required, any users who are not on an approved device and have not completed setup will be immediately signed out of Slack on their mobile devices. "

There is no grace period of 24 hours, 72 hours, or one week — once EMM enforcement is enabled, users must be using an approved device immediately or they are signed out.

(Reference: Slack Administration Study Guide - Mobile Security and Enterprise Mobility Management)

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Slack recommends:

" Workspace Admins are ideal for handling workspace-specific tasks such as member management, approval of apps, and settings management for individual business units. "

Assigning Org Admins (B) or Org Owners (D) grants broader permissions than necessary and increases risk. Creating a channel for managing requests (C) does not delegate actual admin permissions.

(Reference: Slack Administration Study Guide - Delegating Workspace-Level Administration)

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For consolidating workspaces across Slack plans (Pro to Business+), the official process is:

" Export the public channel history from the source workspace and import it into the target workspace. "

The " Move Channels " tool (B) only exists in Slack Enterprise Grid, not between standard workspaces. There’s no Copy Channels feature (D). Manually recreating channels (A) would lose message history.

(Reference: Slack Administration Study Guide - Workspace Consolidation via Exports and Imports)

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Slack ' s feature availability by plan states:

" SAML-based SSO is supported on Business+ and Enterprise Grid plans. "

Pro and Free (B, C) plans do not support SAML SSO. Enterprise Grid only (A) is too restrictive — Business+ also supports it.

(Reference: Slack Administration Study Guide - Authentication and SSO Options)

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The best practice in Slack for securely collaborating with external partners is:

" Use Single-Channel Guests for external users when collaboration is limited to specific channels. Admins should control guest approvals, ideally via a private approval workflow, and set expiry dates for guest accounts to ensure access is revoked after projects end. "

Multi-Channel Guests (Option B) provide broader access than necessary, and manually inviting guests (Option C) does not scale well. Asking companies to upgrade (Option D) is unrealistic for scalable collaboration.

(Reference: Slack Administration Study Guide - Guest Management and External Collaboration)

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Slack Connect settings allow you to control who can initiate external communications:

" By adjusting the Slack Connect settings for DMs to allow only Org Admins and Org Owners to send and accept DM invitations, you reduce the risk of unauthorized or unapproved vendors initiating contact. "

Setting up messaging guidelines (A) informs users but does not block action. Restricting to specific workspaces (C) does not prevent DM invites across the org. Disabling free team access (D) is not directly related to vetting vendors.

(Reference: Slack Administration Study Guide - Slack Connect and External Communications Policy)

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