public function show_tickets_unavailable_message() {
			$post_id = (int) get_the_ID();

			// So long as at least one ticket provider has tickets available, do not show an unavailability message
			if ( in_array( $post_id, self::$posts_with_available_tickets ) ) {
				return;
			}

			// Bail if no ticket providers reported that all their tickets for the event were unavailable
			if ( empty( self::$currently_unavailable_tickets[ $post_id ] ) ) {
				return;
			}

			// Prepare the message
			$message = '<div class="tickets-unavailable">'
				. $this->get_tickets_unavailable_message( self::$currently_unavailable_tickets[ $post_id ] )
				. '</div>';

			/**
			 * Sets the tickets unavailable message.
			 *
			 * @param string $message
			 * @param int    $post_id
			 * @param array  $unavailable_event_tickets
			 */
			echo apply_filters( 'tribe_tickets_unavailable_message', $message, $post_id, self::$currently_unavailable_tickets[ $post_id ] );

			// Remove the record of unavailable tickets to avoid duplicate messages being rendered for the same event
			unset( self::$currently_unavailable_tickets[ $post_id ] );
		}