Welcome to the community, @Stylianos_Belesis! :grinning_face_with_big_eyes: Did you change “done” to the actual name of your field choice? Keep in mind that string comparisons are case sensitive, so “done” is not the same as “Done”. If it’s not a case issue, check to see if you have a space at the end of your single selection option; i.e. "done " won’t match “done”.