Why do I see “Please configure your Site URL in the System Console.” every time I log in to Mattermost?
This message will disappear from the top of Mattermost interface once you have set up a site URL by going to the System Console menu. To do this you can click on the either ‘Site URL’ or ‘System Console’ on the message that appears on top or follow the path:
(Menu) ≡ → System Console → Settings → General → Configuration