This service includes the creation of a custom Shopping Cart / Storefront for your e-commerce website. You have a number of options. If you have a WordPress site, I recommend WooCommerce for your products or services, and Square for payment processing (we use them for our online shop). Both come with free options to help you get your shop up and running quickly. I will setup the shop for you, with 5 to 10 items, and then train you to add the remaining items.
If you would rather use a platform other than WordPress and WooCommerce, I can certainly help. Depending on the complexity and technical difficulty of the platform however, there may be additional costs associated with building everything out and getting it launched.