Hi Chay,
Here is the working code for me,
static void JobSendToPDFInvoice(Args _args)
{
SrsReportRunController controller = new SrsReportRunController();
SRSPrintDestinationSettings settings;
CustInvoiceJour custInvoiceJour = CustInvoiceJour::findRecId(xxxxxxxxxx);
SalesInvoiceContract salesInvoiceContract = new SalesInvoiceContract();
Args args = new Args();
controller.parmReportName(ssrsReportStr(SalesInvoice, Report));
controller.parmExecutionMode(SysOperationExecutionMode::Synchronous);
controller.parmShowDialog(false);
salesInvoiceContract.parmRecordId(custInvoiceJour.RecId);
salesInvoiceContract.parmDocumentTitle(CustInvoiceJour.InvoiceId);
salesInvoiceContract.parmCountryRegionISOCode(SysCountryRegionCode::countryInfo());
// (1) Try by passing args
args.record(custInvoiceJour);
args.parmEnum(PrintCopyOriginal::Original);
args.parmEnumType(enumNum(PrintCopyOriginal));
controller.parmReportContract().parmRdpContract(salesInvoiceContract);
controller.parmArgs(args);
// (2) Try explicitly preventing loading from last value
// controller.parmLoadFromSysLastValue(false);
// Change print settings as needed
settings = controller.parmReportContract().parmPrintSettings();
settings.printMediumType(SRSPrintMediumType::File);
settings.fileFormat(SRSReportFileFormat::PDF);
settings.overwriteFile(true);
settings.fileName(@'C:\Temp\Invoice.pdf');
controller.startOperation();
}