Make the support page easy to access
Make customer support easily accessible. As it's impossible to always predict when users will need to contact the company, offer fixed links that they can easily find on every page. The most common places for the support page link are the footer on websites and the settings page in mobile apps.
Error pages are places where you can predict the need for customer support. Offering assistance at the point of error can ensure that users complete their tasks successfully.
Pro Tip: The documentation or F.A.Q. page shouldn't contain any obvious information. If users come to this page, they will want to know more details.