I created the following array that reads a list of supplier names in column C and writes only unique supplier names in column O.
=IFERROR(INDEX($C$3:$C$200, MATCH(0,IF(ISBLANK($C$3:$C$200),1,COUNTIF($O$2:O3, $C$3:$C$200)), 0)),"")
What I would like to do is develop another array that looks at...