/// <summary>
        /// Runs the code example.
        /// </summary>
        /// <param name="user">The AdWords user.</param>
        /// <param name="businessId">The AdWords Express business id.</param>
        /// <param name="promotionId">The promotion id.</param>
        public void Run(AdWordsUser user, long businessId, long promotionId)
        {
            // Get the ExpressBusinessService.
              ExpressBusinessService businessService = (ExpressBusinessService)
              user.GetService(AdWordsService.v201309.ExpressBusinessService);

              // Get the PromotionService
              PromotionService promotionService = (PromotionService)
              user.GetService(AdWordsService.v201309.PromotionService);

              // Set the business ID to the service.
              promotionService.RequestHeader.expressBusinessId = businessId;

              // Update the budget for the promotion
              Promotion promotion = new Promotion();
              promotion.id = promotionId;
              Money newBudget = new Money();
              newBudget.microAmount = 2000000;
              promotion.budget = newBudget;

              PromotionOperation operation = new PromotionOperation();
              operation.@operator = Operator.SET;
              operation.operand = promotion;

              try {
            Promotion[] updatedPromotions = promotionService.mutate(
            new PromotionOperation[] { operation });

            Console.WriteLine("Promotion ID {0} for business ID {1} now has budget micro " +
            "amount {2}.", promotionId, businessId,
            updatedPromotions[0].budget.microAmount);
              } catch (Exception ex) {
            throw new System.ApplicationException("Failed to update promotions.", ex);
              }
        }
        /// <summary>
        /// Runs the code example.
        /// </summary>
        /// <param name="user">The AdWords user.</param>
        /// <param name="businessId">The AdWords Express business id.</param>
        public void Run(AdWordsUser user, long businessId)
        {
            // Get the ExpressBusinessService.
              ExpressBusinessService businessService = (ExpressBusinessService)
              user.GetService(AdWordsService.v201309.ExpressBusinessService);

              // Get the PromotionService
              PromotionService promotionService = (PromotionService)
              user.GetService(AdWordsService.v201309.PromotionService);

              // Get the business for the businessId. We will need its geo point to
              // create a Proximity criterion for the new Promotion.
              Selector businessSelector = new Selector();

              Predicate predicate = new Predicate();
              predicate.field = "Id";
              predicate.@operator = PredicateOperator.EQUALS;
              predicate.values = new string[] { businessId.ToString() };
              businessSelector.predicates = new Predicate[] { predicate };

              businessSelector.fields = new string[] { "Id", "GeoPoint" };

              ExpressBusinessPage businessPage = businessService.get(businessSelector);

              if (businessPage == null || businessPage.entries == null ||
              businessPage.entries.Length == 0) {
            Console.WriteLine("No business was found.");
            return;
              }

              // Set the business ID to the service.
              promotionService.RequestHeader.expressBusinessId = businessId;

              // First promotion
              Promotion marsTourPromotion = new Promotion();
              Money budget = new Money();
              budget.microAmount = 1000000L;
              marsTourPromotion.name = "Mars Tour Promotion " + ExampleUtilities.GetShortRandomString();
              marsTourPromotion.status = PromotionStatus.PAUSED;
              marsTourPromotion.destinationUrl = "http://www.example.com";
              marsTourPromotion.budget = budget;
              marsTourPromotion.callTrackingEnabled = true;

              // Criteria

              // Criterion - Travel Agency product service
              ProductService productService = new ProductService();
              productService.text = "Travel Agency";

              // Criterion - English language
              // The ID can be found in the documentation:
              // https://developers.google.com/adwords/api/docs/appendix/languagecodes
              Language language = new Language();
              language.id = 1000L;

              // Criterion - Within 15 miles
              Proximity proximity = new Proximity();
              proximity.geoPoint = businessPage.entries[0].geoPoint;
              proximity.radiusDistanceUnits = ProximityDistanceUnits.MILES;
              proximity.radiusInUnits = 15;

              marsTourPromotion.criteria = new Criterion[] { productService, language, proximity };

              // Creatives

              Creative creative1 = new Creative();
              creative1.headline = "Standard Mars Trip";
              creative1.line1 = "Fly coach to Mars";
              creative1.line2 = "Free in-flight pretzels";

              Creative creative2 = new Creative();
              creative2.headline = "Deluxe Mars Trip";
              creative2.line1 = "Fly first class to Mars";
              creative2.line2 = "Unlimited powdered orange drink";

              marsTourPromotion.creatives = new Creative[] { creative1, creative2 };

              PromotionOperation operation = new PromotionOperation();
              operation.@operator = Operator.ADD;
              operation.operand = marsTourPromotion;

              try {
            Promotion[] addedPromotions = promotionService.mutate(
            new PromotionOperation[] { operation });

            Console.WriteLine("Added promotion ID {0} with name {1} to business ID {2}.",
            addedPromotions[0].id, addedPromotions[0].name, businessId);
              } catch (Exception ex) {
            throw new System.ApplicationException("Failed to add promotions.", ex);
              }
        }