[alicedr]

насколько я вижу, заполняется поле тут (в дебаггере вижу что таки заполняется):

class MCRPaymentReview
{
/*...................................*/
public static boolean outOfBalance(MCRCustPaymTotals _mcrCustPaymTotals,
                             AmountCur _overUnderPaymAmount = 0,
                             AmountCur _totalSalesAmount = 0)
    {
/*.....................................*/
else
        {
            // Update back status gets called from so many places that a new
            //                      enum value was added so that only end order can put a
            //                      sales order on out of balance "hold".
            //                   So once end order validates that this is not out of balance
            //                      make sure that it doesn't happen again unless the order
            //                      is modified.
            mcrSalesTable.OutOfBalanceReleased = MCROutOfBalanceReleaseType::Verified;
        }

        ttsBegin;
        if (salesTable.validateWrite())
        {
            salesTable.mcrPackMCRSalesTable(mcrSalesTable);   //<<----------------------------
            salesTable.update();
        }
        else
        {
            throw error("@SYS104318");
        }

        ttsCommit;

        return isValid;

public class SalesTable extends common
{
/*....................................*/
    /// <summary>
    /// Packs the retail sales table extension table into <c>MCRSalesTable</c> field.
    /// </summary>
    /// <param name="_mcrSalesTable">
    /// Extension table to be packed.
    /// </param>
    public void mcrPackMCRSalesTable(MCRSalesTable _mcrSalesTable)
    {
        _mcrSalesTable.SalesTable = this.RecId;
        this.SysExtensionSerializerMap::packExtensionTable(_mcrSalesTable);
    }