Modify your MtlTag Dataset in the SSRS report based on the last field in the query below with the (select statement) and try it. I recently modified my MtlTag while working on an autoprint method to include the Material Queue Sequence id in relation to the NonConformance Tran ID. And the method below worked since where dealing with a temporary table being generated for the MtlTag dataset.
**As a note, I don’t like doing the method below unless I absolutely have to LOL
Blockquote ="
SELECT
T1.[AsmSeq]
,T1.[TagNum]
,T1.[BCAsmSeq]
,T1.[BCBinNum]
,T1.[BCJobNum]
,T1.[BCLotNum]
,T1.[BCOprSeq]
,T1.[BCPartNum]
,T1.[BCWhseCode]
,T1.[BinNum]
,T1.[ItemQty]
,T1.[JobNum]
,T1.[LaborNote]
,T1.[LotNum]
,T1.[NCComment]
,T1.[NonConfTranID]
,T1.[OpCode]
,T1.[OprSeq]
,T1.[PartNum]
,T1.[PartDesc]
,T1.[POLine]
,T1.[PONum]
,T1.[PORel]
,T1.[Reason]
,T1.[ReasonDesc]
,T1.[ResGrpID]
,T1.[TagFormat]
,T1.[TagTitle]
,T1.[UM]
,T1.[VendID]
,T1.[VendName]
,T1.[WhseCode]
,T1.[QtyNum]
,T1.[LegalNumber]
,T1.[JobSeqType]
,T1.[Revision]
,T1.[Company]
,T1.[MtlSeq]
,T1.[PurPoint]
,T1.[RefAsmSeq]
,T1.[RptUserID]
,T1.[UM_UOMSymbol]
,T1.[VendorNum]
, (SELECT ISNULL(DMRNUM,0000) FROM [EPICORTEST].[ERP].[DMRHEAD] (NOLOCK)
WHERE PONUM = CONVERT(INT,T1.PONUM)) as ‘’ FROM MtlTags_" + Parameters ! TableGuid.Value +
" T1 "