1. In the Tenant Dashboard, find the user you'd like to edit and click into their profile. 

2. On their profile page, go down to the Licenses section. If available, there will be an "Actions" label at the end to right of "State". Click on the extend link if available. 

3. On the next page, click on the date shown in the text field. This will pull up a calendar from which you can pick a new expiration date for the user's license. 

4. Click on the "Save" button to finalize the extension. The license should appear as "active" on the user's profile now.