well you can get rid of the indirect with
=SUMIFS(INDEX(DATA!$K:$DI,,MATCH(D$4,DATA!$K$5:$DI$5,0)),Scenario,$E$2,FC_Product,$C7,Group,$A$1,Division,$A$2,UniqueWkbk,$A$3,FC_CustCH,$A$4,FC_Cust,$A$5)