From the xCenta Dashboard, click on 'Tools'. Then click on 'Admin' in the top right of the screen.
A new window will appear. From the Administration screen, click on 'Manage Site Alerts'.
A new page will appear, click on the
icon.
A new pop up will appear, choose the relevant roles and click on 'Save' and then 'Okay'.
The Manage Alerts page will reopen, click on the 
Icon.
A new pop up will appear, click on 'Confirm'.
If you are unable to follow these instructions, you may not have the required user permissions. Please contact your Site Administrator.