Marketing match-back analysis help

[christopher]

I'm trying to match common records in two different lists for a "match-back"
analysis for my marketing efforts. I have a list of respondents to my kits,
and a list of customers. I want to find how many customers are in the kit
list. My database people used to do this, but now I'm doing it solo. I tried
VLOOKUP but I didn't do it right. Help?

 

[Mike H]

Christopher,

If you are tryng to count items in a list then countif or sumproduct sounds
a better bet then vlookup but an idea of your data layout would be helpful if
you need further assistance.

Mike