If fomula

[Tacklemom]

I have a question with the If formula.

what I want to do is, if cell B13= an # from a drop down list titled
exceptions, then cell c15=check data?

the formula I had in C15 was =if(b13,exceptions,"check data")

 

[Gary''s Student]

=IF(COUNTIF(exceptions,"=" &B13)>0,"check data","")