public static async Task AssignAddressToCustomer(AddressDto address, CustomerDto customer) { await customer.AddAddress("", address.City, address.Email, address.Company, address.Address1, address.Address2, address.LastName, address.CountryId, address.FaxNumber, address.FirstName, address.VatNumber, address.PhoneNumber, address.CustomAttributes, address.CreatedOnUtc, address.ZipPostalCode, address.StateProvinceId).GetValueAsync(); }