FM SPE_CALCULATE_PRICE - Java Call does not return Net Value of Sales Order

Question

Dear Experts,
we want to make a call of FM SPE_CALCULATE_PRICE from the SAP NetWeaver Developer Studio to achieve that we receive the Net Value of a Sales Order. When we try to test the Scenario in SAP CRM (Creation of a Sales Order) Itself all is working fine. But if we try to make the call from Developer Studio it does not work for some reason. We have applied SAP Note 1936255.
I am attaching:
- the Pricing Trace we receive as a result from SAP.
The Java Code we use is the following:
Code JAVA
import com.sap.mw.jco.*;
import com.sap.mw.jco.JCO.ParameterList;
import com.sap.mw.jco.JCO.Structure;
import com.sap.mw.jco.JCO.Table;
public class callIPCDemo {
public static void main(String[] args) {
  System.out.println("--- START ---");
  // connect to SAP system
  JCO.Client client = null;
  try {
  client = JCO.createClient(
    "400", // SAP client
    "XXXX", // User ID
    "XXXXXXXX", // Password
    "EN", // Language
    "XXX.XXX.XX.XXX", // IP des hosts
    //"QPMR-CR20", // Hostname
          "00"); // System number
  client.connect();
  System.out.println("Connection OK\n");
  catch (Exception ex) {
  System.out.println(ex);
  return;
  // print RFC attributes
  System.out.println(client.getAttributes());
  // create JCo repository
  JCO.Repository repository = new JCO.Repository("testIPCcall", client);
  // Function Module SPE_CALCULATE_PRICE
  IFunctionTemplate ft = repository.getFunctionTemplate("SPE_CALCULATE_PRICE");
  JCO.Function function = null;
  try {
  function = ft.getFunction();
  } catch (Exception ex) {
  System.out.println(ex);
  return;
  // IS_HEADER_INPUT
  ParameterList importParameterList = function.getImportParameterList();
  Structure HeaderInput = importParameterList.getStructure("IS_HEADER_INPUT");
  HeaderInput.setValue("005056A7005E1ED3A7AD22549B279B91", "DOCUMENT_ID");
  HeaderInput.setValue("CRM", "APPLICATION");
  HeaderInput.setValue("ZCRM02", "PRC_PROCEDURE_NAME");
  HeaderInput.setValue("EUR", "DOCUMENT_CURRENCY_UNIT");
  HeaderInput.setValue("EUR", "LOCAL_CURRENCY_UNIT");
  HeaderInput.setValue("X", "PERFORM_TRACE");
  // IS_HEADER_INPUT-ATTRIBUTES (substructure/table)
  Table HeaderInputAttributes = HeaderInput.getTable("ATTRIBUTES");
  HeaderInputAttributes.appendRows(3);
  Table valuesTable = null;
  HeaderInputAttributes.setRow(0);
  HeaderInputAttributes.setValue("DIS_CHANNEL", "FIELDNAME");
  valuesTable = HeaderInputAttributes.getTable("VALUES");
  valuesTable.appendRows(1);
  valuesTable.setValue("01", 0);
  HeaderInputAttributes.setRow(1);
  HeaderInputAttributes.setValue("SALES_ORG", "FIELDNAME");
  valuesTable = HeaderInputAttributes.getTable("VALUES");
  valuesTable.appendRows(1);
  valuesTable.setValue("O 50000151", 0);
  HeaderInputAttributes.setRow(2);
  HeaderInputAttributes.setValue("SOLD_TO_PARTY", "FIELDNAME");
  valuesTable = HeaderInputAttributes.getTable("VALUES");
  valuesTable.appendRows(1);
  valuesTable.setValue("005056A7005E1ED3A7ACEFCAD95FBB91", 0);
  importParameterList.setValue(HeaderInput, "IS_HEADER_INPUT");
  // IT_ITEM_MAIN_INPUT
  String itemGuid = "005056A7005E1ED3A7AD3F004CD85B91";
  ParameterList tableParameterList = function.getTableParameterList();
  Table tableItems = tableParameterList.getTable("IT_ITEM_MAIN_INPUT");
  tableItems.appendRows(1);
  tableItems.setValue(itemGuid, "ITEM_ID");
  tableItems.setValue("005056A7005E1EE39289A0FB457C9D8A", "PRODUCT_ID");
  tableItems.setValue("M", "EXCH_RATE_TYPE");
  tableItems.setValue("10", "QUANTITY");
  tableItems.setValue("PC", "QUANTITY_UNIT");
  // IT_ITEM_ATTRIB_INPUT
  Table tableItemAttributes = tableParameterList.getTable("IT_ITEM_ATTRIB_INPUT");
  tableItemAttributes.appendRows(2);
  tableItemAttributes.setValue(itemGuid, "ITEM_ID");
  tableItemAttributes.setValue("PRODUCT", "FIELDNAME");
  tableItemAttributes.setValue("005056A7005E1EE39289A0FB457C9D8A", "FIELDVALUE");
  tableItemAttributes.nextRow();
  tableItemAttributes.setValue(itemGuid, "ITEM_ID");
  tableItemAttributes.setValue("PRC_INDICATOR", "FIELDNAME");
  tableItemAttributes.setValue("X", "FIELDVALUE"); 
  // IT_ITEM_TIMESTMP_INPUT
  Table tableTimestamps = tableParameterList.getTable("IT_ITEM_TIMESTMP_INPUT");
  tableTimestamps.appendRows(3);
  tableTimestamps.setValue(itemGuid, "ITEM_ID");
  tableTimestamps.setValue("PRICE_DATE", "FIELDNAME");
  tableTimestamps.setValue("20140225000000", "TIMESTAMP");
  tableTimestamps.nextRow();
  tableTimestamps.setValue(itemGuid, "ITEM_ID");
  tableTimestamps.setValue("PRT_DELIVERYDATE", "FIELDNAME");
  tableTimestamps.setValue("20140225000000", "TIMESTAMP");
  tableTimestamps.nextRow();
  tableTimestamps.setValue(itemGuid, "ITEM_ID");
  tableTimestamps.setValue("PRT_ORDERDATE", "FIELDNAME");
  tableTimestamps.setValue("20140225000000", "TIMESTAMP");
  // execute function module
  try {
  client.execute(function);
  } catch (Exception ex) {
  System.out.println(ex);
  return;
  // check result
  JCO.Structure structureHeaderResult = function.getExportParameterList().getStructure("ES_HEADER_RESULT");
  System.out.println("Net Value: " +
    structureHeaderResult.getValue("NET_VALUE"));
  JCO.Table tableHeaderResult = function.getExportParameterList().getTable("ET_TRACE");
  System.out.println(tableHeaderResult.getNumRows());
  for(int x = tableHeaderResult.getNumRows(); x <= tableHeaderResult.getNumRows(); x = x + 1) {
  tableHeaderResult.setRow(x);
  System.out.println("Trace: " + x + tableHeaderResult.getValue("ACCESS_TRACE_XML"));
  // disconnect from SAP system
  client.disconnect();
  System.out.println("--- END ---");

Answer 1

Thanks.
I'll have to discuss VTAA pricing types with the Business Analyst, since there are many records and I'm not sure what I'm looking at.
In regards to your second point, it's not in calculation. It'll stay at that number until you save, check the conditions tab in the header or reprice the document.
What's interesting is that it doesn't do this for all materials.
For example:
Material 1 - priced $25
Material 2 - priced $25
Net price would be $50, which is correct.
But say we use Material 3 - priced $25 as well. For this one, the total net price could show up as $30.
Can pricing types be specific to materials or material groups? What is the pricing type exactly and why 'A'?