"Regular expression to check for referral codes"- Google Docs Editors Community
Names, email addresses, websites, referral codes: a short answer box accepts whatever people type, typos included, and you find out when you can't reach them or can't match a code. Google Forms can check the answer with Response validation, but the rules sit behind the question's menu, and anything beyond the basics means writing a regular expression. In Formfacade you open the question's validation and pick a rule: Email, URL, a minimum or maximum length, a word the answer must or must not contain, or a regular expression. People see your message until the answer fits.
Create your form and follow the steps below.
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