public function contact_added_to_lists( $attachedListIds, $subscriber ) {
		$user_id  = Automator()->helpers->recipe->fluent_crm->get_subscriber_user_id( $subscriber );
		$list_ids = Automator()->helpers->recipe->fluent_crm->get_attached_list_ids( $attachedListIds );
		if ( empty( $list_ids ) ) {
			// sanity check
			return;
		}
		$matched_recipes = Automator()->helpers->recipe->fluent_crm->match_single_condition( $list_ids, 'int', $this->trigger_meta, $this->trigger_code );
		if ( ! empty( $matched_recipes ) ) {
			foreach ( $matched_recipes as $matched_recipe ) {
				if ( ! Automator()->is_recipe_completed( $matched_recipe->recipe_id, $user_id ) ) {
					$args   = [
						'code'            => $this->trigger_code,
						'meta'            => $this->trigger_meta,
						'recipe_to_match' => $matched_recipe->recipe_id,
						'ignore_post_id'  => true,
						'user_id'         => $user_id,
					];
					$result = Automator()->maybe_add_trigger_entry( $args, false );
					if ( $result ) {
						foreach ( $result as $r ) {
							if ( true === $r['result'] ) {
								if ( isset( $r['args'] ) && isset( $r['args']['get_trigger_id'] ) ) {
									$trigger_meta = [
										'user_id'        => $user_id,
										'trigger_id'     => (int) $r['args']['trigger_id'],
										'trigger_log_id' => $r['args']['get_trigger_id'],
										'run_number'     => $r['args']['run_number'],
									];
									$trigger_meta['meta_key']   = $this->trigger_meta;
									$trigger_meta['meta_value'] = maybe_serialize( $matched_recipe->matched_value );
									Automator()->insert_trigger_meta( $trigger_meta );
									$trigger_meta['meta_key']   = 'subscriber_id';
									$trigger_meta['meta_value'] = maybe_serialize( $subscriber->id );
									Automator()->insert_trigger_meta( $trigger_meta );
								}
								Automator()->maybe_trigger_complete( $r['args'] );
							}
						}
					}
				}
			}
		}
	}