This variable is only avaliable for menu application and it has the objective of giving acess to a menu item that was selected, this way the user can take desicions before to run the application.

Ex. 1: To clean global variable.
if ({sc_menu_item} == "item_1")
{
sc_reset_global([global1], [global2]);
}


Ex. 2: If an application requires a global variable another application can initialize it accordingly.
if ({sc_menu_item} == "item_5" && (!isset([glo_employ]) || empty([glo_employ])))
{
sc_redir(apl_inf_emp);
}

Ex. 2: Use the button on the toolbar menu.
if ({sc_menu_item} == "btn_1")
{
sc_apl_conf("form_customer", "start", "new");
}