An Sales orders are labeled International (Open Orders 1 sheet Column E), and the the Status of the order can be found in one of two reports (Columns I and J).

*There are more, but I'm just concerned about 4.

Here's where it gets complicated. An order's status can be Staged AND International (Both), and FG/Parg ITEMS can help cover both International and Staged ORDERS, but Staged Items can ONLY fill orders that are Staged until all Staged Orders are filled - then they can only fill orders that are International, and International Items cannot cover Orders that aren't International (or both).

International - International

Staged - Staged until a) The item is used up or b) there are no more Staged orders and now can be used for International.

Parg/FG - International, Staged, Neither.

The question is - What do we have in-stock?

The question is - What do we have in-stock?

This is my formula. There HAS to be a way to do this in VBA that's either easier or at least far more clean. HELP?

=IF(SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0),IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,VALUE($C2),INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0))=0,0,IFERROR(IFS(AND($K2="Both",IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"STG","FGINT"})),0)>0),IFERROR(IFS(OR(COUNTIF($C$2:$C$6500,$C2)=1,COUNTIFS($C$2:$C2,$C2,$K$2:$K2,"Both")=1),IF(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG"})),0)>='Open Orders1'!$D2,IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG"})),0),IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0)),COUNTIFS($C$2:$C2,$C2,$K$2:$K2,"Both")>1,IF(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG"})),0)>=$D2,MINIFS($G$1:$G1,$C$1:$C2,$C2,$K$1:$K2,"Both"),SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0),-SUMIFS($D$1:$D1,$C$1:$C1,$C2)))),0),AND($K2="INTNL",SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"FGINT")>0),IFERROR(IFS(OR(COUNTIF($C$2:$C$6500,$C2)=1,COUNTIFS($C$2:$C2,$C2,$K$2:$K2,"INTNL")=1),IF(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"FGINT")>='Open Orders1'!$D2,SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"FGINT"),IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","PARG","FG"})),0)),AND(COUNTIFS($C$2:$C2,$C2,$K$2:$K2,"INTNL")>1,SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"FGINT"),-IFERROR(SUMIFS($D$1:$D8037,$C$1:$C1,$C2,$K$1:$K1,"Both"),0))>=$D2),MINIFS($G$1:$G1,$C$1:$C1,$C2,$K$1:$K1,"INTNL")),0),AND($K2="Staged",SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"STG"),-SUMIFS($D$1:$D1,$C$1:$C1,$C2))>0),IFERROR(IFS(OR(COUNTIF($C$2:$C$6500,$C2)=1,COUNTIFS($C$2:$C2,$C2,$K$2:$K2,"Staged")=1),IF(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"STG")>='Open Orders1'!$D2,IFERROR(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"STG"),0),IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"STG","PARG","FG"})),0)),COUNTIFS($C$2:$C2,$C2,$K$2:$K2,"Staged")>1,IFERROR(IFS(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"STG")>=$D2,MINIFS($G$1:$G1,$C$1:$C1,$C2),SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"STG"),-SUMIFS($D$1:$D1,$C$1:$C1,$C2))<$D2,SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0),-SUMIFS($D$1:$D1,$C$1:$C1,$C2))),0)),0),$K2=0,IF(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0)=IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"PARG","FG"})),0),IFERROR(IFS(OR(COUNTIF($C$2:$C$6500,$C2)=1,COUNTIFS($C$2:$C2,$C2,$K$2:$K2,0)=1),IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"PARG","FG"})),0),COUNTIFS($C$2:$C2,$C2,$K$2:$K2,0)>1,IF(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"PARG","FG"})),0)>=$D2,MINIFS($G$1:$G1,$C$1:$C1,$C2,$K$1:$K1,0),SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0),-SUMIFS($D$1:$D1,$C$1:$C1,$C2)))),0),IFERROR(IFS(COUNTIF($C$2:$C2,$C2)=1,SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0),-SUMIFS($D$1:$D1,$C$1:$C1,$C2)),AND(COUNTIF($C$2:$C2,$C2)>1,SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0),-SUMIFS($D$1:$D1,$C$1:$C1,$C2))>0),SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0),-SUMIFS($D$1:$D1,$C$1:$C1,$C2))),0))),IFERROR(IFS(AND(OR(AND($K2="INTNL",SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"FGINT")<=$D2),AND($K2="Staged",SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"STG")<=$D2),AND($K2="Both",IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG"})),0)<=$D2),OR(COUNTIF($C$2:$C$6500,$C2)=1,COUNTIFS($C$2:$C2,$C2)=1))),SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"PARG","FG"})),0),-SUMIFS($D$1:$D1,$C$1:$C1,$C2)),AND(OR(AND($K2="INTNL",SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"FGINT")<=$D2),AND($K2="Staged",SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,"STG"),-SUMIFS($D$1:$D1,$C$1:$C1,$C2))<=$D2),AND($K2="Both",IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG"})),0)<=$D2)),COUNTIFS($C$2:$C2,$C2)>1),IF(SUM(COUNTIFS($C$1:$C1,$C2,$K$1:$K1,{"Staged","Both","INTNL"}))>0,SUM(IFERROR(SUM(SUMIFS(INV!$C$2:$C$31500,INV!$A$2:$A$31500,$C2,INV!$B$2:$B$31500,{"FGINT","STG","PARG","FG"})),0),-SUMIFS($D$1:$D1,$C$1:$C1,$C2)),MINIFS($G$1:$G1,$C$1:$C1,$C2))),"x")))

Better just to link to an example:

### Example.xlsx

drive.google.com