/// <summary>
        /// Creates the campaign with a shared bidding strategy.
        /// </summary>
        /// <param name="campaignService">The campaign service.</param>
        /// <param name="name">The campaign name.</param>
        /// <param name="biddingStrategyId">The bidding strategy id.</param>
        /// <param name="sharedBudgetId">The shared budget id.</param>
        /// <returns>The campaign object.</returns>
        private Campaign CreateCampaignWithBiddingStrategy(CampaignService campaignService, string name,
        long biddingStrategyId, long sharedBudgetId)
        {
            // Create campaign.
              Campaign campaign = new Campaign();
              campaign.name = name;
              campaign.advertisingChannelType = AdvertisingChannelType.SEARCH;

              // Set the budget.
              campaign.budget = new Budget();
              campaign.budget.budgetId = sharedBudgetId;

              // Set bidding strategy (required).
              BiddingStrategyConfiguration biddingStrategyConfiguration =
              new BiddingStrategyConfiguration();
              biddingStrategyConfiguration.biddingStrategyId = biddingStrategyId;

              campaign.biddingStrategyConfiguration = biddingStrategyConfiguration;

              // Set network targeting (recommended).
              NetworkSetting networkSetting = new NetworkSetting();
              networkSetting.targetGoogleSearch = true;
              networkSetting.targetSearchNetwork = true;
              networkSetting.targetContentNetwork = true;
              campaign.networkSetting = networkSetting;

              // Create operation.
              CampaignOperation operation = new CampaignOperation();
              operation.operand = campaign;
              operation.@operator = Operator.ADD;

              return campaignService.mutate(new CampaignOperation[] {operation}).value[0];
        }
    /// <summary>
    /// Creates the shopping campaign.
    /// </summary>
    /// <param name="budgetId">The budget id.</param>
    /// <param name="merchantId">The Merchant Center id.</param>
    /// <param name="campaignService">The CampaignService instance.</param>
    /// <returns>The Shopping campaign.</returns>
    private static Campaign CreateCampaign(long budgetId, long merchantId,
        CampaignService campaignService) {
      // Create campaign.
      Campaign campaign = new Campaign();
      campaign.name = "Shopping campaign #" + ExampleUtilities.GetRandomString();
      // The advertisingChannelType is what makes this a Shopping campaign.
      campaign.advertisingChannelType = AdvertisingChannelType.SHOPPING;

      // Set shared budget (required).
      campaign.budget = new Budget();
      campaign.budget.budgetId = budgetId;

      // Set bidding strategy (required).
      BiddingStrategyConfiguration biddingStrategyConfiguration =
          new BiddingStrategyConfiguration();
      biddingStrategyConfiguration.biddingStrategyType = BiddingStrategyType.MANUAL_CPC;

      campaign.biddingStrategyConfiguration = biddingStrategyConfiguration;

      // All Shopping campaigns need a ShoppingSetting.
      ShoppingSetting shoppingSetting = new ShoppingSetting();
      shoppingSetting.salesCountry = "US";
      shoppingSetting.campaignPriority = 0;
      shoppingSetting.merchantId = merchantId;

      // Set to "true" to enable Local Inventory Ads in your campaign.
      shoppingSetting.enableLocal = true;
      campaign.settings = new Setting[] { shoppingSetting };

      // Create operation.
      CampaignOperation campaignOperation = new CampaignOperation();
      campaignOperation.operand = campaign;
      campaignOperation.@operator = Operator.ADD;

      // Make the mutate request.
      CampaignReturnValue retval = campaignService.mutate(
          new CampaignOperation[] { campaignOperation });

      return retval.value[0];
    }