I am trying to use a Nintex workflow to create an item in List A upon submission of a form from List B. I would like to Query List A and check if an item exists based on a practitioner's email address. For that I have used Query action in Nintex workflow to filter based on email address. I am storing the ID and email address address using collection variables and finally using a 'For each' loop to store the collection ID value in a single line of text variable. However, I am not sure how I could let the workflow check a condition in Run if action to look for an item in the List A based on the email address and if an item doesn't exist, then create an item in List A. I have added screenshots for your reference. Please advise.