getContext()->getRequest(); $entityId = intval($request->get("bill_id")); list($orderId, $paymentId) = \Bitrix\Sale\PaySystem\Manager::getIdsByPayment($entityId); if ($orderId > 0) { /** @var \Bitrix\Sale\Order $order */ $order = \Bitrix\Sale\Order::load($orderId); if ($order) { /** @var \Bitrix\Sale\PaymentCollection $paymentCollection */ $paymentCollection = $order->getPaymentCollection(); if ($paymentCollection && $paymentId > 0) { /** @var \Bitrix\Sale\Payment $payment */ $payment = $paymentCollection->getItemById($paymentId); if ($payment) { $service = \Bitrix\Sale\PaySystem\Manager::getObjectById($payment->getPaymentSystemId()); if ($service) $service->processRequest($request); } } } }