For any supported WordPress content types (e.g. post, page, user, or any supported custom content type in your installation), you can assign Salesforce objects that will be created / updated / deleted when the data in WordPress is saved, and the WordPress objects can be created / updated / deleted when the data in Salesforce is saved.
For each such combination of object and content type, choose which fields should be mapped to one another, creating a fieldmap. The plugin acts on matching data after it is installed.
This plugin also includes developer hooks that allow for additional plugins to modify what data the plugin is working with, or what happens upon specific events.