When we create SO from sales agreement, we will face a problem that occur on standard version of AX 2012 if number of sales agreement record are thousands and we only want to choose let’s say 2 or 3 line from sales agreement line to Sales Line.
 
we can choose records from agreement line by fill the quantity, and the problem is standard AX still will loop all records no matter the quantity is fill or not. and all thosands will going through process that not needed.
 
Class : SalesAutoCreate\Create

void  create()
{
    #OCCRetryCount

    try
    {
        setprefix("@SYS55110");

        ttsbegin;

        while (this.recordExist())
        {

            this.setCust();

            setprefix(#PreFixField(CustTable,AccountNum));

            this.setSalesTable();

            this.setSalesLine();

            setprefix(#PreFixField(SalesLine,ItemId));

            this.nextRecord();
        }

        this.endUpdate();

        ttscommit;
    }

    catch (Exception::Deadlock)
    {
        retry;
    }

    catch (Exception::UpdateConflict)
    {
        if (appl.ttsLevel() == 0)
        {
            if (xSession::currentRetryCount() >= #RetryNum)
            {
                throw Exception::UpdateConflictNotRecovered;
            }
            else
            {
                retry;
            }
        }
        else
        {
            throw Exception::UpdateConflict;
        }
    }

}

i tried debug and i found the issue that made sales agreement release order process become so slow. and made a modification as below.
Class : SalesAutoCreate_ReleaseFromAgreement\New

protected void new(Common  _releaseOrderLine,
                   Object  _callBackClass     = null,
                   Common  _releaseOrderTable = null)
{
    //modify by fanddy
    //purpose : speeding up release agreement from BMP
    SalesCreateReleaseOrderLineTmp  TIDSalesCreateReleaseOrderLineTmp;

    releaseOrderLine     = _releaseOrderLine  as SalesCreateReleaseOrderLineTmp;
    delete_from releaseOrderLine where releaseOrderLine.SalesQty < 1;
    //end modify fanddy

    releaseOrderTable    = _releaseOrderTable as SalesCreateReleaseOrderTableTmp;
    this.firstRecord();

    createFromAgreementLine     = AgreementLineQuantityCommitment::find(releaseOrderLine.AgreementLineQuantityCommitment, false);
    createFromSalesAgreement    = SalesAgreementHeader::find(createFromAgreementLine.Agreement ? createFromAgreementLine.Agreement : releaseOrderTable.AgreementHeader);

    currentSalesId       = '';
    firstRecord          = true;

    super(_releaseOrderLine,_callBackClass);
    // <GEERU>
    countryRegion_RU = SysCountryRegionCode::isLegalEntityInCountryRegion([#isoRU]);
    // </GEERU>

Voila !! Now your when you create an SO with 2-3 SO lines originated from thousands line data of sales agreement, the process has been boosted !!