Forum Post: How to update customer using httpwebrequest ?

Hi expert ,

  I am able to add customer data using httpwebrequest .Now i want to update this customer using httpwebrequest but webrequest return a 'internal error 500'  I have used below formatted data :

<soap:Envelope xmlns:soap="schemas.xmlsoap.org/.../"><soap:Body><UpdateMultiple xmlns="urn:microsoft-dynamics-schemas/page/insync_customer"><insync_customer_List><insync_customer><key>16;EgAAAACJ/0NNMDAy6;2140230;</key><No>CM002</No><Name>kishore Barik</Name><E_Mail>kishore.b@insync.co.in</E_Mail><Gen_Bus_Posting_Group>NATIONAL</Gen_Bus_Posting_Group><VAT_Bus_Posting_Group>NATIONAL</VAT_Bus_Posting_Group><Customer_Posting_Group>DOMESTIC</Customer_Posting_Group><Customer_Price_Group /><Customer_Disc_Group /></insync_customer></insync_customer_List></UpdateMultiple></soap:Body></soap:Envelope>

please give me suggestion why this error return while i trying to updatemultiple customer

Thanks

Surajit