# Invite collaborators

{% hint style="warning" %}
You must have the **Space Administrator** [role](/administration/roles.md) to invite collaborators.
{% endhint %}

The creator of a project automatically becomes a Space Administrator. Every other user must be invited, including other administrators. To make an informed decision about which roles to assign, consult the [Roles and permissions](/administration/roles.md) guide.

## Invite co-authors as space administrators

Space Administrators receive every privilege related to the project, including the ability to invite additional users, create instances, and delete the project.

1. Navigate to the space containing your project.
2. Click the **Cogwheel** icon and select **Project Users / Instances**.
3. Click **+ INVITE**.
4. Select **Option 2 — Administrator Invitation**.
5. Enter the email addresses of the co-authors you want to invite.
6. Click **+ INVITE**.

## Invite co-authors as instance editors

Instance Editors can only see and edit the contents of the specific instance they are invited to. They cannot create instances, invite users, or modify anything outside that instance.

1. Navigate to the space containing your project.
2. Click the **Cogwheel** icon and select **Project Users / Instances**.
3. Click **+ INVITE**.
4. Select **Option 1 — User Invitation**.
5. Select the instance and the role you want to assign.
6. Enter the email addresses of the co-authors you want to invite.
7. Click **+ INVITE**.

For a detailed walkthrough of all invitation options, see [Invite to a space](/administration/space-management/invite-to-a-space.md) and [Invite to an instance](/administration/instance-management/invite-to-an-instance.md).


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