Web servislerinden büyük veriler çekmek istediğinizde bu mesaj ile karşılaşabilirsiniz. “The maximum message size quota for incoming messages (65536) has been exceeded. To increase the quota, use the MaxReceivedMessageSize property on the appropriate binding element.”

Çözümü:

BasicHttpBinding binding = new BasicHttpBinding() { MaxReceivedMessageSize = 6553600 };
SalesPurchaseSoapClient salesServisi = new SalesPurchaseSoapClient(binding, newEndpointAddress(UriSalesPurchase));