A touchpoint is a point of contact or interaction between a business and its costumers/consumers. This can be an advertisement, a physical store an online help center, a website etc. Each of these touchpoints can have a lot of underlying touchpoints. For example, 'advertising' could include touchpoints across many channels, and a physical store includes touchpoints like signage to help people find the store.
Let's have a look at the various touchpoints a customer has with your business