What is the connection between the operator inputting that descriptive string, and the folder creation?
Your use of a droplet implies manual processing.
Your description implies the operator is entering some text, and the folders fall out.
Is there some other task active here that's creating these directories, or is this all in this same Automator script?
Details like this can send things in different directions, such as some operation creating a folder in a known place, and the requirements here then operate—if some other tool or operation is involved writing a folder into a known place, then it's possible to have the folder take an action when the new folder arrives. Automatically.
Or are these production jobs just the operator inputting the string into some tool, and you then want two nested folders created? (You're referring to a droplet and which implies some other steps elsewhere and with some manual processing to drag something onto the script, but your replies here are also referring to an operator that is entering something. Is all this input specification and folder-related processing one sequence, from operator text input through to folder creation? Or is there an intermediate file or directory here that's getting dragged around and dropped?)