Excel IF、VLOOKUP、THEN 公式跨多列

Question

I have 4 columns that I need to compare to produce an output into a 5th column exampled below:

• IF col1 = "Partner Opportunity" THEN
• AND IF col2 <> "CLM Driven Lead" THEN
• VLOOKUP(col3,col4:col4,1,FALSE)
• RETURN IF MATCH "CLM Driven Lead" ELSE RETURN ""

col1	col2	col3	col4	col5
Partner Opportunity	CLM Driven Lead	Pete	Frank
Partner Opportunity		Mary	David	CLM Driven Lead
		Frank	Mary

So far I have tried a combination of different IFs, ORs, ANDs, VLOOKUPs etc. Below are the one's I feel I came the closest to what I am trying to achieve:

=IF(AY2="Partner Opportunity",IF(VLOOKUP(D2,BH:BH,1)=D2,"Update Lead Source to CLM Driven Lead",""),"")

=IF(AND(AY229="Partner Opportunity",R229<>"CLM Driven Lead"),IF(OR(ISNUMBER(MATCH(B229,BH:BH,0)))),"Change Lead Source to CLM Driven Lead","NO")

Any help is appreciated!

Answer 1

Standard IF(AND())

=IF(AND(A2="Partner Opportunity",B2<>"CLM Driven Lead",ISNUMBER(MATCH(C2,D:D,0)))," CLM Driven Lead","")

MATCH will return a number if the match exists and an error if not. The ISNUMBER returns TRUE/FALSE.