It would be amazing if we (the Opti customer can customize the promo code error message.
Currently if a customer is outside of the promo parameters (i.e. over the total $ amount, the website says Invalid Promo Code. It isn't invalid, it just doesn't meet the criteria.
A promo code may be expired; therefore, it would be nice to say Promo Code Has Expired.
Invalid Promo code is so deceiving to our customers.