protected function status_transition() {
		$status_transition = $this->status_transition;

		// Reset status transition variable.
		$this->status_transition = false;

		if ( $status_transition ) {
			try {
				do_action( 'woocommerce_order_status_' . $status_transition['to'], $this->get_id(), $this );

				if ( ! empty( $status_transition['from'] ) ) {
					/* translators: 1: old order status 2: new order status */
					$transition_note = sprintf( __( 'Order status changed from %1$s to %2$s.', 'woocommerce' ), wc_get_order_status_name( $status_transition['from'] ), wc_get_order_status_name( $status_transition['to'] ) );

					// Note the transition occurred.
					$this->add_status_transition_note( $transition_note, $status_transition );

					do_action( 'woocommerce_order_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $this );
					do_action( 'woocommerce_order_status_changed', $this->get_id(), $status_transition['from'], $status_transition['to'], $this );

					// Work out if this was for a payment, and trigger a payment_status hook instead.
					if (
						in_array( $status_transition['from'], apply_filters( 'woocommerce_valid_order_statuses_for_payment', array( 'pending', 'failed' ), $this ), true )
						&& in_array( $status_transition['to'], wc_get_is_paid_statuses(), true )
					) {
						/**
						 * Fires when the order progresses from a pending payment status to a paid one.
						 *
						 * @since 3.9.0
						 * @param int Order ID
						 * @param WC_Order Order object
						 */
						do_action( 'woocommerce_order_payment_status_changed', $this->get_id(), $this );
					}
				} else {
					/* translators: %s: new order status */
					$transition_note = sprintf( __( 'Order status set to %s.', 'woocommerce' ), wc_get_order_status_name( $status_transition['to'] ) );

					// Note the transition occurred.
					$this->add_status_transition_note( $transition_note, $status_transition );
				}
			} catch ( Exception $e ) {
				$logger = wc_get_logger();
				$logger->error(
					sprintf(
						'Status transition of order #%d errored!',
						$this->get_id()
					),
					array(
						'order' => $this,
						'error' => $e,
					)
				);
				$this->add_order_note( __( 'Error during status transition.', 'woocommerce' ) . ' ' . $e->getMessage() );
			}
		}
	}