Forgive me for what is likely a very simple answer to this question, but I'm still rather new to FME.

I'm wanting to use a defined User Parameter (Type - Text) which will then inform my AttributeFilter transformer (where the user parameter directly corresponds to a specific field of the dataset being read by the AttributeFilter transformer). However, when I set the transformer parameters as per the screenshot below, I don't then get the expected output, i.e. the dataset filtered for that specific value.

Is there something I'm missing?

Thankyou for taking the time to read this post.