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Alway ask qty when add product to cart
function custom_pos_alway_product_option_popup($session_data){
$session_data['setting']['pos_alway_product_option_popup'] = 'yes';
return $session_data;
}
//add_filter('op_get_guest_login_session_data','custom_pos_alway_product_option_popup',20,1); // for guest checkout only
add_filter('op_get_login_cashdrawer_data','custom_pos_alway_product_option_popup',20,1);