BuddyPress.org

Have a look at this function:
`wp_schedule_single_event`

You can find it in wp-includes/cron.php. There’s a bunch of other cron related functions in there, but the one I mentioned above is probably your best bet. Then schedule an event by attaching it to a hook, when a user signs up

No worries. There’s a recurring scheduling function as well in that file.

something like: (what i use for sitemap generator for a daily function call)

`
//on plugin activation register cron
function myplugin_activation() {
wp_schedule_event( time(), ‘daily’, ‘myplugin_wp_cron_call’ );
}
register_activation_hook(__FILE__, ‘myplugin_activation’);

//on plugin deactivation remove cron
function myplugin_deactivation() {
wp_clear_scheduled_hook( ‘myplugin_wp_cron_call’ );
}
register_deactivation_hook(__FILE__, ‘myplugin_deactivation’);

//hook the action to call from wp_cron
add_action( ‘myplugin_wp_cron_call’, ‘myplugin_some_function_to_hook_for_wp_cron’ );
`