Hi,
I have written in expression for with 6 nested IIFs as shown below.
IIF(Assb_1.Child is null, PartsMaster_1.PartName, IIF( Assb_2.Child is null, PartsMaster_2.PartName, IIF(Assb_3.Child is null, PartsMaster_3.PartName, IIF( Assb_4.Child is null, PartsMaster_4.PartName, IIF( Assb_5.Child...