Org ID from equity search

Hi, I am performing a query using the following formula, but I would like to add also the field "Org Id" to the search. I was not able to do it properly, as when I add the term "TR.OrgidCode" to the fields, I only retrieve NAs.

criteria = "SCREEN(U(IN(DEALS)/UNV:DEALSEQ/), IN(TR.NIIssueType,""FO"",""IPO""), IN(TR.NITransactionStatus,""LIVE""), TR.NIisECM=True, BETWEEN(TR.NIIssueDate,"+t+","+t+")/dt:Date/, CURN=EUR)"

criteria = "SCREEN(U(IN(DEALS)/UNV:DEALSEQ/), IN(TR.NIIssueType,""FO"",""IPO""), IN(TR.NITransactionStatus,""LIVE""), TR.NIisECM=True, BETWEEN(TR.NIIssueDate,"+t+","+t+")/dt:Date/, CURN=EUR)"
display = ["TR.NIIssuerPermID",

        "TR.NIISINAtOffer",   

        "TR.LegalEntityIdentifier",


        "TR.NIDealID",

        "TR.NISdcPackageNumber",

        "TR.NIMasterDealType.code",

        "TR.NIIssueDate",

        "TR.NIIssuer",

        "TR.NIIssueType",

        "TR.NITransactionStatus",

        "TR.NIIssuerNation",

        "TR.NICurrentFilingDate",

        "TR.NIOfferPricePrintUniform",

        "TR.NIProceedsAmtInclOverallotSoldAllMkts(Scale=6,Curn=EUR)",

        "TR.NIProceedsAmtInclOverallotSoldThisMkt(Scale=6,Curn=EUR)",

        "TR.NIIssuerExchTicker",

        "TR.NIIssuerDomicileSubRegion",

        "TR.NIIssuerDomicileRegion",

        "TR.NIIssuerTRBCBusinessSector",

        "TR.NIIssuerDomicileNation"]


df = rd.get_data(criteria, display)

where 't' is a date variable that I use to loop the query.

Thank you.