Invite new members to your workspace

A Slack workspace is made up of channels where team members can communicate and work together. Whether your Slack workspace is brand new or it's been around for a while, read on to learn how to invite others to join.

If you need to add someone to a channel rather than a workspace, learn how in Add people to a channel.

Tip: If you're an org owner or org admin on the Enterprise Grid subscription, visit Add members to workspaces on Enterprise Grid for more details.


Invitation permissions

Your ability to invite others to your workspace depends on your role in Slack and your workspace settings.

  • Workspace owners and workspace admins can invite members and guests. Guests can only be invited to workspaces on paid subscriptions.
  • By default, members can invite other members. If an owner or admin has restricted members from sending invitations, they can request invitations for approval instead.
  • Guests cannot send or request invitations. 


Send an invitation

Desktop

iOS

Android

Invite members

Members can view messages and files in any public channel and private channels that they're part of.
  1. From your desktop, click on your workspace name in the top left.
  2. Select Invite people to [workspace name] from the menu. 
  3. Choose Members.
  4. Enter the email addresses of people that you want to invite. If you have a list of email addresses, click on add many at once, copy and paste them into the text box and click on Add invitees.
  5. Click on Send invitations, then click on Done.


Invite guests

On the Standard, Plus and Enterprise Grid subscriptions, workspace owners and workspace admins can invite multi-channel guests to selected channels or single-channel guests to one channel. Guests can view messages and files in the channels that they’ve been added to.

  1. From your desktop, click on your workspace name in the top left.
  2. Select Invite people to [workspace name] from the menu.
  3. Choose multi-channel guests or single-channel guests.
  4. Enter the email addresses of people that you want to invite. If you have a list of email addresses, click on add many at once, copy and paste them into the text box and click on Add invitees.
  5. Under Invite to channel, choose the channel(s) that guests will be added to.
  6. If you like, under Set a time limit, select an option from the drop-down menu to determine how long guests can access the channel(s).
  7. Click on Invite guests.

Note: It's not currently possible to invite guests from Slack's mobile apps.

  1. Open the Slack app. 
  2. From the  Home tab, swipe right to open the main menu. 
  3. Tap  Invite people
  4. Enter the email addresses of people that you want to invite, or tap Invite from Contacts to select people saved to your device.
  5. Tap Send.

Note: It's not currently possible to invite guests from Slack's mobile apps.

  1. Open the Slack app.
  2. From the  Home tab, swipe right to open the main menu. 
  3. Tap  Invite people
  4. Enter the email addresses of people that you want to invite, or tap Contacts to invite people stored on your device.
  5. Tap Send.

Tip: On paid subscriptions, you can share a channel with up to 19 other organisations using Slack Connect, rather than inviting guests to your workspace. Sharing a channel makes it easier for multiple companies to work together, without leaving your own workspaces.


Request an invitation

On the Free, Standard and Plus subscriptions, workspace owners and workspace admins can choose to restrict who can send invitations. If members are restricted from sending invitations, they can request invitations instead and will receive a message from Slackbot when an owner or admin has approved or denied their request.

Free version of Slack

Desktop

iOS

Android

  1. From your desktop, click on your workspace name in the top left.
  2. Select Invite people to [workspace name] from the menu. 
  3. Enter the email addresses of people that you want to invite. If you have a list of emails to add, click on add many at once, paste them into the text box and click on Add invitees
  4. If you like, click on Edit/add below Default channels to choose channels that your invitees will be added to if an admin approves your request.
  5. Click on Send request
  1. Open the Slack app. 
  2. From the  Home tab, swipe right to open the main menu. 
  3. Tap  Invite people.  
  4. Enter the email address of the person that you want to invite. You'll see the option to enter additional emails once you start typing.
  5. Tap Send request
  1. Open the Slack app. 
  2. From the  Home tab, swipe right to open the main menu. 
  3. Tap  Invite people
  4. Enter the email address of the person that you want to invite. You'll see the option to enter additional emails once you start typing.
  5. Tap the  tick symbol.  
  6. Tap Send request


Standard and Plus subscriptions

Desktop

iOS

Android

  1. From your desktop, click on your workspace name in the top left.
  2. Select Invite people to [workspace name] from the menu.
  3. Choose the role that you want to request to invite: Member, multi-channel guest or single-channel guest.
  4. Enter the email addresses of people that you want to invite. If you have a list of email addresses, click on add many at once, paste them into the text box and click on Add invitees.
  5. When requesting invites for members, click on Edit/add below Default channels to choose channels they'll be added to. When requesting invites for guests, you'll be prompted to choose channel(s) that they'll have access to and to set an optional expiry date for their accounts.
  6. Click on Send request

Note: It's not currently possible to request invitations for guests from the Slack mobile apps.

  1. Open the Slack app.
  2. From the  Home tab, swipe right to open the main menu. 
  3. Tap  Invite people
  4. Enter the email address of the person that you want to invite. You'll see the option to enter additional emails once you start typing. 
  5. Tap Send request

Note: It's not currently possible to request invitations for guests from the Slack mobile apps.

  1. Open the Slack app. 
  2. From the  Home tab, swipe right to open the main menu. 
  3. Tap  Invite people
  4. Enter the email address of the person that you want to invite. You'll see the option to enter additional emails once you start typing. 
  5. Tap Send request


Sharing an invitation link

Members with permission to send invitations can create a link that anyone can use to join a workspace. Invitation links can be used by up to 2,000 people. You'll need to create a new link if you reach this limit.

Desktop

iOS

Android

  1. From your desktop, click on your workspace name in the top left.
  2. Select Invite people to [workspace name] from the menu, then click Members.
  3. Click  Get an invitation link to share.
  4. Choose an expiry date from the drop-down menu. 
  5. Click on Create invitation link.
  6. Click on Copy, then share the link with anyone that you want to invite.
  1. Open the Slack app.
  2. From the  Home tab, swipe right to open the main menu. 
  3. Tap  Invite people
  4. Tap  Create an Invite Link
  5. Choose an expiry date. 
  6. Tap Copy link or Share link, then send the link to anyone that you want to invite.
It's not possible to create invitation links on the Android app at the moment.

Note: You won’t see the option to create an invitation link if single sign-on (SSO) has been enabled for your workspace. If SSO is not enabled and you can't see this option, find an owner or admin to ask for help. 

 

Allow email sign-up

To allow people to join a workspace using an email address from an approved domain (e.g. your company’s domain), workspace owners on all subscriptions can enable email sign-up. Slack will send a validation link to email addresses on the approved domain to verify their identity prior to adding people to that workspace.

  1. From your desktop, click on your workspace name in the top left.
  2. Select Settings & administration from the menu, then click Workspace settings.
  3. Next to Joining this workspace, click Expand.
  4. Choose Allow invitations and approve invitations for any email address from these domains.
  5. Enter your domain(s), then click Save.

Tip: If a member requests an invitation for someone with an email address from an approved domain, an invitation will be sent automatically.


Managing pending invitations

Workspace owners and workspace admins can view pending and accepted invitations and make the following changes:

  • Revoke invitation
    Revoke an invitation to prevent an invited member from using it, or disable email notifications that they may receive from Slack before accepting
  • Resend invitation
    Send a new email invitation if the original invitation has expired or been lost
  1. From your desktop, click on your workspace name in the top left.
  2. Select Invite people to [workspace name] from the menu.
  3. Click See past invites.
  4. Click on the Pending tab at the top of the page. 
  5. Next to the invitation that you want to manage, click on Resend invitation or Revoke.

Note: If you revoke a pending invitation, the invited member's account will show up as deactivated. To invite this person again, you'll need to reactivate the account from the Manage members page, then select Resend invitation.

 

Invitation limits

In certain circumstances, Slack may limit your ability to send invitations. This typically happens if you’ve sent many invites, but few have been accepted.

If you hit an invite limit, all of your pending invitations will remain valid. Please note that revoking pending invitations will not lift an invitation limit.

To avoid hitting an invitation limit, create an invitation link (or ask your workspace owner or admin to do so) and share it with anyone that you want to join your workspace.

Who can use this feature?
  • Workspace owners, workspace admins and members 
  • Free, Standard, Plus and Enterprise Grid subscriptions