How does it work step by step?
1. Adding to Cart
Imagine that customers are surfing your store to find their favorite goods or services. This searching process is the initial step that turns a visitor into a potential buyer. With the help of Add to cart button appearing on every product page, customers can easily select those items for further review. Creating the first impression of an easy-to-use assisting tool that is designed for customers' good is the utmost action to attract customers to move to the next step.
2. Processing on the cart
A user-friendly shopping cart is so vital that can make customers decide whether to actually buy those chosen items or not. The more convenient it is to make adjustments in the online shopping cart, the more willing buyers are to pay money on the selected stuff. Those adjustments include adding new items, deleting chosen items, changing the quantity, size, colors, material, etc.
Customers can carry out these actions merely with a few simple clicks. The total price of all items (even after adjustment) can be automatically calculated for customers to help them keep the paying value suitable for their budget. Only when these activities run smoothly will customers be ready to actually spend their money on the checkout process. Clicking on the Checkout button leads them to the next step.
3. Purchasing
In this stage, customers are required to add their information that is necessary for the payment, such as their name, address, phone number, credit card number, and so on. The amount of data that must be provided is quite a lot, which can cause impatience and frustration for shoppers. If you don't want customers to abandon the cart and leave quickly, keep this process concise and convenient with supportive features like automatic address suggestion, diverse payment methods, or multiple shipping options. With a simple click on Submit/Complete order button, customers then can review their order information again to make sure if there is any mistakes. If there is no problem at all, your store has successfully turned a visitor into a purchaser.
4. Buying some more
Although it is a success to make customers spend their money on your e-store, the function of the shopping cart does not stop there. I bet that you desire to make customers keep buying more and more even after they finish their purchase. That's why a Continue shopping button is essential if you don't want your customers just come and leave quickly.
By clicking on this button, customers can get back to the shopping web page and continue to browse for more products that they still feel interested. Not only a Continue shopping button but also some automatic suggestions for substitute or complement items should also be taken into consideration. Customers can add them and purchase without having to leave the shopping cart.
Tip!: Magento 2 Automatic Related Products extension supports online stores in featuring cross-sell, upsell and suggested products on shopping cart page. This module works automatically based on sets of conditions and actions configured on backend.
Source : https://nibyiza.com/2021/05/26/online-shopping-cart-how-does-it-work/