purchTable    = PurchTable::find(this.parmPurchId());

ttsBegin;
// Create PurchParamUpdate table
purchFormLetterParmData = PurchFormletterParmData::newData(
                        DocumentStatus::PackingSlip,
                        VersioningUpdateType::Initial);

purchFormLetterParmData.parmOnlyCreateParmUpdate(true);
purchFormLetterParmData.createData(false);
purchParmUpdate = purchFormLetterParmData.parmParmUpdate();

// Set PurchParmTable table
purchParmTable.clear();
purchParmTable.TransDate                = SystemDateGet();
purchParmTable.Ordering                 = DocumentStatus::PackingSlip;
purchParmTable.ParmJobStatus            = ParmJobStatus::Waiting;
purchParmTable.Num                      = this.parmPackingSlipId();
purchParmTable.PurchId                  = purchTable.PurchId;
purchParmTable.PurchName                = purchTable.PurchName;
purchParmTable.DeliveryName             = purchTable.DeliveryName;
purchParmTable.DeliveryPostalAddress    = purchTable.DeliveryPostalAddress;
purchParmTable.OrderAccount             = purchTable.OrderAccount;
purchParmTable.CurrencyCode             = purchTable.CurrencyCode;
purchParmTable.InvoiceAccount           = purchTable.InvoiceAccount;
purchParmTable.ParmId                   = purchParmUpdate.ParmId;
purchParmTable.insert();

// Set PurchParmLine table
select purchLine
where purchLine.PurchId     == purchTable.purchId &&
      purchLine.LineNumber  == this.parmLineNumber();

purchParmLine.InitFromPurchLine(purchLine);

purchParmLine.ReceiveNow    = this.parmQty();
purchParmLine.ParmId        = purchParmTable.ParmId;
purchParmLine.TableRefId    = purchParmTable.TableRefId;
purchParmLine.setQty(DocumentStatus::PackingSlip, false, true);
purchParmLine.setLineAmount();
purchParmLine.insert();

purchFormLetter = PurchFormLetter::construct(DocumentStatus::PackingSlip);
purchFormLetter.transDate(systemDateGet());
purchFormLetter.proforma(false);
purchFormLetter.specQty(PurchUpdate::All);
purchFormLetter.purchTable(purchTable);

// This is the ID we hard code as the product receipt ID, if we do the posting via UI
// user would have the option to manually enter this value
purchFormLetter.parmParmTableNum(purchParmTable.ParmId);
purchFormLetter.parmId(purchParmTable.ParmId);
purchFormLetter.purchParmUpdate(purchFormLetterParmData.parmParmUpdate());
purchFormLetter.run();

ttsCommit;