Button that executes php function, or custom VBO action
You can create a menu item that does what you want along the lines of

function YOURMODULE_menu() {

  $items=array();

  $items['sugarme/%'] = array(
    'title' =&gt; 'Send this node to sugarCRM',
    'page callback' =&gt; 'YOURMODULE_sugarme',
    'page arguments' =&gt; array(1),
    'access callback' =&gt; TRUE,
    'type' =&gt; MENU_CALLBACK,
  );

  // other menu items here

}

function YOURMODULE_sugarme($nid) {

   if (YOURFUNCTIONTOSENDTHISNIDTOSUGARCRM($nid)) {
     return 'Sent to sugar';
   } else {
     return 'Send to sugar failed';
   }

 }


which in the very simple form above (no security, no argument sanity checks, etc) creates a path on your system www.yourhost.com/sugarme/#### that will call your function with the nid passed to it.