This shortcode is designed to segment content on a page, post, excerpt or text widget based upon a user’s “first login” status.
[ELSE_not_first_login] conditional branching is supported.
Shortcode nesting is NOT supported.
[mbr_not_first_login'] You've logged in before. [ELSE_not_first_login] Welcome, this is the first time you've logged in. [/mbr_not_first_login]
There is currently no ActiveMember360 API function equivalent for this shortcode.