Check Dropdown List for Yes or No before allowing Signature
I have a form with multiple signature fields and multiple dropdown lists (all lists have same values " " {Space (acting as blank)}, Yes, No). I want to prevent a signature from being added to PrepSign1 if DropDown1 & 2 are not set to either Yes or No. Below is a sample of my form. I have a total of 8 signoff's for each level (Prep/Reviewer).

