Mobile e-commerce used to be considered a “cherry on top” for desktop online retail. As smart mobile devices became more widespread and accessible, people began incorporating them into the e-commerce journey—but primarily to search and browse products rather than conduct transactions. This was due in part to the challenges associated with using mobile browsers of the past when it came to complex, multi-step interactions like checking out.
https://www.mobileappdaily.com/mobile-readiness-key-to-ecommerce-websites/