Разноска накладной

[kalex_a]

    purchFormLetter = PurchFormLetter::construct(DocumentStatus::Invoice);
 
    select * from purchTable
    join purchLine
        where purchTable.PurchId == "10623" && (purchLine.PurchId==purchTable.PurchId);
 
    purchLine = PurchLine::findRecId(purchLine.RecId,true);
    purchLine.PurchReceivedNow=1;
    purchLine.update();
    purchFormLetter.update(purchTable,
                           "777",
                           systemDateGet(),
                           PurchUpdate::ReceiveNow,
                           AccountOrder::None,
                           NoYes::No,
                           NoYes::No);

Почему ругается на кол-во??? ((