These terms are often used interchangeably. But if you like to be precise, there are slight differences in each of their use. User Journey Maps are more UX design process-focused. They are used to identify any friction, and redundancies in product design to improve the customer experience. Whereas Customer Journey Maps cover a wider range of customer interactions and business considerations. Customer Experience Maps go even broader to outline a customer's general experience as they try to complete a task or achieve a goal. Customer Experience Maps do not necessarily focus on a customer's interactions with a specific company. Whereas a Customer Journey Map's sole purpose is to zoom in on how a customer perceives and interacts with a product, service, or brand.