# Requesting roles

Need access to a course, research project, or dataset? You can submit a role request that will be reviewed by an organization manager or administrator.

## How to request a role

Nuvolos makes it easy to request the access you need. For example, when you're invited to an organization, you often receive an 'observer' role for public datasets. Since observers can't view or interact with dataset contents, you'll need to request a viewer role to gain access.

**To request a viewer role for a public dataset:**

1. Open the dataset from the toolbar menu.
2. Click **REQUEST ROLE** on the overview page.

Once you submit your request, an [organisation manager](https://docs.nuvolos.com/administration/roles/..#organisation-level-roles) will review it. You'll be able to view the dataset once your request is approved.

## Finding and approving role requests

**To review and manage requests**, use the notifications icon in the toolbar:

**Helpful features:**

* You'll see two types of requests: those you've submitted (waiting for approval) and those requiring your approval
* Use the color-coded mail checkboxes to filter requests (for example, show only pending requests)
* Filter by username and organization to quickly find specific requests

**To approve a request:**

1. Locate the request in the **REQUESTS TO APPROVE** section.
2. Click the green checkmark button to approve, or the red cancel button to reject the request.

## Canceling role requests

Changed your mind about a request? You can cancel any pending request you've submitted.

**To cancel a pending request:**

1. Find your request in the **REQUESTS SUBMITTED** section.
2. Click the red cancel button to withdraw the request.