Method PostReceipts

using System.Net;

string uri = "https://fusion.superion.com/FusionOSServices/v1/ONESolution/AccountsReceivable/Receipts";
string xmlText =
 @"<ReceiptsRequest>
       <MaxRows>10</MaxRows>
       <ReceiptParameter>
           <Field>CustomerID</Field>
           <Operator>6</Operator>
           <Value>PM*</Value>
       </ReceiptParameter>
       <ReceiptParameter>
           <Field>ReceiptNumber</Field>
           <Operator>6</Operator>
           <Value>*</Value>
       </ReceiptParameter>
   </ReceiptsRequest>";

using (WebClient req = new WebClient())
{
    string stringResult = wc.UploadString(new Uri(uri), "POST", xmlText);
    XmlDocument response = xmlDoc.LoadXml(stringResult);
    // TODO
}