I received an error when building the report. However, I am not certain whether or not I executed your suggestion the way you intended. Please see the attached PDF.

Also, I'm wondering if\how the following report components factor into things.

Order number expression:

=replace(Fields!SOPNUMBE.Value,"DTCI","") --strips "DTCI" from SOPNUMBE

Row groups:

matrix1_BinNumber (group/sort on BinNumber),

matrix1_ItemNumber (group/sort on ItemNumber),

matrix1_ItemDescription (group/sort on ItemDescription)

Column groups:

matrix1_SITE (groups on SOPNUMBE, sorts by Location)

Thanks again!