PO Receipts are not created properly in Sage100 using SData

SOLVED

I'm trying to create receipts in Sage 100 using the SData interface. The XML that is sent to the server is presented below. It should create one receipt with one receipt line. Request to the server is executed successfully, however created receipt is invalid: all fields concerning amounts are not filled. In my XML I set values to PrepaidAmt and NontaxableAmt fields, but in the database I see that these fields are set to zero. Also the receipt has no lines, PO_ReceiptDetail table stays empty. Am I missing something?

<?xml version="1.0" encoding="utf-8"?>
<entry xmlns:sdata="http://schemas.sage.com/sdata/2008/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:http="http://schemas.sage.com/sdata/http/2008/1" xmlns="http://www.w3.org/2005/Atom">
  <id>http://192.168.56.2/sdata/MasApp/MasContract/ABX/PO_ReceiptHeader/$template</id>
  <sdata:payload>
    <PO_ReceiptHeaderSPECIAL sdata:uri="http://192.168.56.2/sdata/MasApp/MasContract/ABX/PO_ReceiptHeader/$template" xmlns="">
      <ReceiptType>G</ReceiptType>
      <ReceiptNo>010007</ReceiptNo>
      <PurchaseOrderNo>0000010</PurchaseOrderNo>
      <PrepaidAmt>4656.08</PrepaidAmt>
      <NontaxableAmt>4656.08</NontaxableAmt>
      <PrepaidFreightAmt>4656.08</PrepaidFreightAmt>
      <APDivisionNo>01</APDivisionNo>
      <VendorNo>AIRWAY</VendorNo>
      <PO_ReceiptDetailSPECIALSECOND sdata:uri="http://192.168.56.2/sdata/MasApp/MasContract/ABX/PO_ReceiptDetail/$template">
        <ReceiptType>G</ReceiptType>
        <ReceiptNo>010007</ReceiptNo>
        <LineKey>000001</LineKey>
        <LineSeqNo>00000100000000</LineSeqNo>
        <ItemCode>2480-8-50</ItemCode>
        <UseTax>N</UseTax>
        <RequiredDate>2015-05-25T00:00:00-07:00</RequiredDate>
        <PurchasesAcctKey>0000000AT</PurchasesAcctKey>
        <UnitOfMeasure>EACH</UnitOfMeasure>
        <WarehouseCode>000</WarehouseCode>
        <LotSerialFullyDistributed>Y</LotSerialFullyDistributed>
        <OrderLineKey>000001</OrderLineKey>
        <OriginalQtyOrdered>2</OriginalQtyOrdered>
        <BalanceQtyBackordered>1</BalanceQtyBackordered>
        <OriginalOrderQty>0</OriginalOrderQty>
        <QuantityReceived>1</QuantityReceived>
        <QuantityInvoiced>0</QuantityInvoiced>
        <QuantityBackordered>1</QuantityBackordered>
        <PreviousQtyReceived>0</PreviousQtyReceived>
        <PreviousQtyInvoiced>0</PreviousQtyInvoiced>
        <UnitCost>2115.750000</UnitCost>
        <OriginalUnitCost>2115.750000</OriginalUnitCost>
        <ExtensionAmt>2115.750000</ExtensionAmt>
      </PO_ReceiptDetailSPECIALSECOND>
    </PO_ReceiptHeaderSPECIAL>
  </sdata:payload>
  <http:httpStatus>200</http:httpStatus>
</entry>