What if I do not have an email address? July 07, 2022 08:02 Updated You will need a valid email address to use the McDonald's App. Related articles I am having issues registering the McDonald's App. Why is this so? How fast will I be able to receive the OTP via email? Can I change my email address under my profile? What if I have keyed in a wrong email address? My Party Pack is missing some items/ items are incorrect. What do I do?