How Can i set limit on integer? i want to set only 11digit for phone numbers (not more than 11, not less than 11)

Do this; Make sure the type of your question is text In the constraints column for this question, use the regex() like this: regex(.,'[0-9]{11}'). This means you are only accepting characters 0-9 and you are limiting them to EXACTLY 11 characters/digits. It will work. Allan ▶ ···