Allow promo codes to be applied with a click

When you offer users a promo code on a website or advertisements, allow them to apply the promo with a click rather than having to enter the code manually. It'll notably reduce user efforts, as they won't need to strain their memory to remember the code if it's embedded into an image that can't be copied.

Another option is to offer a selection of available promo codes during checkout. Once they find the right deal, users can click the code and apply it automatically to the order without unnecessary worries.^[1]