Hi ChrisBERN, in your expression you have to put open and close braces for each condition. so try like this =iif((Fields!SalesOriginId.Value = "01") And (Fields!SalesPoolId.Value = "05") And (CountRows("WMSPickingList_TransportTmp") > 0), false, true) like this i've done it for some requirement and it is working properly =iif((Fields!ItemId.Value="JK-K001") And (Sum(Fields!Ordered.Value)=20),true,false) Regards, Johnkrish
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