1. Navigate to app.arcstudiopro.com/billing/checkout to checkout using the promo code you were given.
2. Click the “add promotion code” box to type your promo code.

3. If you have signed up for an account in the last 7 days and are on the free trial, you may have a promo code already applied. You can checkout in an anonymous browser (incognito window in google chrome) and use the same email you use for your ArcStudio account with your new promo code.