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# Invite new users to your organization

You can invite new members to your organization from the **Administration** portal. This document explains how to invite new members and resend or delete pending invitations.

## System and user requirements

The ability to invite new password-authenticated members to your Sigma organization requires the following:

* You must be assigned the **Admin** [account type](/docs/create-and-manage-account-types#default-account-types).

If your organization uses only SAML or OAuth to authenticate members, you must first assign new members in the IdP or authorization server. If a member receives an invite before this step is complete, they see an IdP error and will be unable to log in to Sigma.

## Invite a new user

To invite a new user to your Sigma organization:

1. Go to **Administration** > **Users**:

   1. In the Sigma header, click your user avatar to open the user menu.

   2. Select **Administration** to open the **Administration** portal.

   3. In the side panel, select **Users**.

2. In the **Users** page, click **Invite users**.

3. In the **Invite people to your Sigma organization** modal, set up and send the invitation:

   1. In the **Enter email addresses...** field, enter the email address of one or more members to invite.

      Sigma recommends inviting no more than 1,000 members at a time.

   2. (Optional) In the **Guest users section**, select the **Invite as guest users** checkbox to limit user interactions to content explicitly shared with them or their assigned teams.

   3. (Optional) In the **Select account type** dropdown, select an account type to assign the new members. You can change the account type assigned by default. See [Manage default invitation account type](/docs/create-and-manage-account-types#manage-default-invitation-account-type).

   4. (Optional) In the **Add a custom message** field, enter a message to include in the invitation email. You can set up a default email message. See [Customize welcome and invite emails](/docs/customize-welcome-and-invite-emails) to set up a default email message.

   5. (Optional) In the **Assign team(s)** section, select the teams to assign the new members.

   6. Click **Invite** to send an invitation to the email addresses provided.

      ![](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/c0162e267a5e61f02f9e2fbb2ab92c20fa636c45d6bb529ecdbc40af00add89c/assets/docs-images/0b4fd0de1a483bd827108bdba05abe4520d6720ae21199360cfbc0ff7206c913-invitetosigma_5.png)

      Sigma sends an invitation to the provided email addresses. You can track invite details in the **Users** > **Pending invitations** tab until members set up their accounts.

      ![](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/0b0e8b940283cb7a4c28f01b53ab8a1dddd475ef719ddb55331bff0380be9de9/assets/docs-images/b2e0d28-image.png)

## Resend a pending invitation

To resend a pending invitation to a user:

1. Go to **Administration** > **Users**:

   1. In the Sigma header, click your user avatar to open the user menu.

   2. Select **Administration** to open the **Administration** portal.

   3. In the side panel, select **Users**.

2. In the **Users** page, select the **Pending invitations** tab.

3. Resend an invitation to one or more members:

   1. To resend an invitation to an individual member, locate their email address, then click <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/more.svg" alt="" /> **More** and select **Resend invite**.

   2. To resend invitations to multiple members, select the checkbox next to each applicable email address, then click <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/resend.svg" alt="" /> **Resend invites**.

   When the invite is successfully sent, Sigma displays an "Invites re-sent" confirmation message at the bottom of the page.

## Revoke a pending invitation

To revoke a pending invitation to a user:

1. Go to **Administration** > **Users**:

   1. In the Sigma header, click your user avatar to open the user menu.

   2. Select **Administration** to open the **Administration** portal.

   3. In the side panel, select **Users**.

2. In the **Users** page, select the **Pending invitations** tab.

3. Revoke an invitation sent to one or more members:

   1. To revoke an invitation sent to an individual member, locate their email address, then click <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/more.svg" alt="" /> **More** and select **Revoke invite**.

   2. To revoke invitations sent to multiple members, select the checkbox next to each applicable email address, then click <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/trash.svg" alt="" /> **Revoke invites**.

   Sigma removes the revoked invitations from the list, and the **Set up your account** link in any previously sent emails are invalidated.

## Related resources

* [User account types](/docs/user-account-types)
* [Authentication methods for your Sigma organization](/docs/organization-authentication-methods)