The types of features and functionality you will require for your company’s online store depend entirely on its unique needs and business model.
Nowadays, you can choose from a variety of apps and integrations, and it’s possible to have a ton of different features integrated into the website. However, that doesn’t mean that you should just present your customers with endless apps and functions. Instead, you need to consider what your customers’ needs are and the lifecycle they go through while on your website, as well as whom you plan to sell to. For example, a local store doesn’t need to convert currencies or be able to calculate shipping prices to places all over the world, and so these functions won’t be necessary. However, if you plan to be an ecommerce store that sells and ships worldwide, then those two things will be vital for the company's everyday operations. With that said, in most cases, commonly required functionalities include responsive design, SEO capabilities, fast loading times, and integration capabilities.