So you used SUM and filtered the range and got what you expected?I tried it and the column values came out correct. The problem is when filtering the column
Currently using the 2021 versionI suspect that the subtotal functions ignores cells that contain the aggregate function.
Are you still using xl2019 or do you have a newer version?
=FILTER('All Customers'!$C$4:$G$1000,'All Customers'!$E$4:$E$1000=REPLACE(CELL("filename",$A$4),1,FIND("]",CELL("filename",$A$4)),""))
Very cool thank youIn that case remove all the formulas from C5 down & across & put this in C5 onlyExcel Formula:=FILTER('All Customers'!$C$4:$G$1000,'All Customers'!$E$4:$E$1000=REPLACE(CELL("filename",$A$4),1,FIND("]",CELL("filename",$A$4)),""))