Sorry, I missed your response. A customer might not be a user. Assume you go to Geno’s in Philly to eat a cheesesteak. You’ll never be a user. Omnichannel businesses (most retailers are omnichannels, where digital and physical mix) have both online and offline elements in their customer journey and in their experience mapping. That’s why I believe UX is a subset of CX. There might be cases though where the two are the same.