I KNOW this is likely quite easy and I just can't find the answer.....

I have a field being downloaded from an online registration site. The people who set it up didn't include anything but text in multiple choice fields online. As such, I'm using this formula with nested IFs to convert text to a number which works fine.
=IF(AF2="Making PBL Work for You:Making or Adapting a PBL (MSM)",1,
IF(AF2="Who Killed the Mayo (HSS)",2,
IF(AF2="Rocket Away (HSM)",3,
IF(AF2="STEM Nights (GEN)",4))))

However, when the source field contains parentheses (see below (MSM), I'm getting a returned value of FALSE. I know this is because of the parenthesis. So I guess the question is how to make Excel see those particular () characters as text, rather than part of the formula?

=IF(AH2="Fire Development Series (HSS)",1,
IF(AH2="Catching Waves (MSS)",2,
IF(AH2="Buy Now, Pay Later: Get a Credit Card (HSM)",3,
IF (AH2="A Slice of Heaven Pizzeria Business Plan problem based learning (MSM),4,))))

Any help at all is appreciated.