//Create a business event for a deposit with four business transactions using the CreateBusinessTransaction method
var client = new BFSServiceReference.bfsapiSoapClient();

var credentials = new BFSServiceReference.Credentials()
{
    UserName = bfsusername, //Username of administrative user in your instance of BFS
    Password = bfspassword, //Password of the administrative user in your instance of BFS
};

var response = client.CreateBusinessTransactions(new BFSServiceReference.CreateBusinessTransactionRequest()
{
    Credentials = credentials,

    identify = bfsidentifier, //Identifier is a unique token for your instance of BFS        

    Entities = new[]
    {
        new SuperTransaction()
        {
            BusinessTransactions = new BusinessTransaction[]
            {
                //Transaction for customer BFS-account
              new BusinessTransaction()
              {
                  Account = new Guid("cbfe4a0d-bf05-4a7e-bdc8-1ee809817bee"),
                  BusinessTransactionType = "Default_Transfer_Trade_Cash",
                  TransactionReference = "Test",
                  Asset1 = new Guid("21b0718c-bce9-4c6b-b1c9-520b65121ff6"),
                  AmountAsset1 = 100M,
                  //Since the transaction type is for only the Trade dimension as suggested by the transaction name 
                  TradeDate = DateTime.Parse("2016-04-18")
              },
              //Transaction for customer BFS-account
              new BusinessTransaction()
              {
                  Account = new Guid("cbfe4a0d-bf05-4a7e-bdc8-1ee809817bee"),
                  BusinessTransactionType = "Default_Transfer_Settle_Cash",
                  TransactionReference = "Test",
                  Asset1 = new Guid("21b0718c-bce9-4c6b-b1c9-520b65121ff6"),
                  AmountAsset1 = 100M,
                  //Since the transaction type is for only the Settle dimension as suggested by the transaction name 
                  SettlementDate = DateTime.Parse("2016-04-18"),
                  ValueDate = DateTime.Parse("2016-04-18")
              },
              //Transaction for house Custody account
              new BusinessTransaction()
              {
                  Account = new Guid("25c7b534-c2b6-47a9-a3df-1dcc88b1f49c"),
                  BusinessTransactionType = "Default_Transfer_Trade_Cash",
                  TransactionReference = "Test",
                  Asset1 = new Guid("21b0718c-bce9-4c6b-b1c9-520b65121ff6"),
                  AmountAsset1 = 100M,
                  //Since the transaction type is for only the Trade dimension as suggested by the transaction name 
                  TradeDate = DateTime.Parse("2016-04-18")
              },
              //Transaction for house Custody account
              new BusinessTransaction()
              {
                  Account = new Guid("25c7b534-c2b6-47a9-a3df-1dcc88b1f49c"),
                  BusinessTransactionType = "Default_Transfer_Settle_Cash",
                  TransactionReference = "Test",
                  Asset1 = new Guid("21b0718c-bce9-4c6b-b1c9-520b65121ff6"),
                  AmountAsset1 = 100M,
                  //Since the transaction type is for only the Settle dimension as suggested by the transaction name 
                  SettlementDate = DateTime.Parse("2016-04-18"),
                  ValueDate = DateTime.Parse("2016-04-18")
              },
            },
        },                    
    }

});

Console.WriteLine(response.Message);