Primary Action Button

When to use

Use a Primary Action Button whenever there is a primary action for a certain page of your application or for the whole application, which is executed frequently. Typical primary actions are "Create New", "Edit,", "Save" or "Send".

The Primary Action Button also serves as an additional handle to open the Drawers.

If there is no primary action, you may opt to use the Primary Action Button as a shortcut to navigate back to the application's main page instead of omitting it completely. Do that if

navigating back to the main page is a frequent action in your application
or you use Primary Action buttons on some pages and would like to keep the layout consistent across pages
or drawers are frequently used
and the space occupied by the button is not urgently needed for the content

If the primary action is clearly associated with a specific element on the user interface, place controls within the content instead.

How to use

Provide a clear icon for the Primary Action Button since it has no text label
If the Primary Action Button changes its action within a page (for example switching to "save" when editing, change its icon as well
If you use the Primary Action Button as a shortcut for going to the main page, use the "go-home" icon from the actions category for it.

Desktop-specific

If your application is using Column-based navigation

If there is a global Primary Action, associate it with the first column
If there is a Primary action for the context of a specific column, associated with the respective page