Saved information in customer account can boost eCommerce conversion rate?
It is an arguable point that customer account should be required or optional on eCommerce sites. One one hand, making the customers account mandatory will leave you loss of those customers who do not want to create an account. On the other hand, there are certain information in customer accounts which can help the eCommerce site owners to present a more personalized shopping experience. On the whole, it's a one-time burden to the customers after that, both the parties can get something useful out of these customer accounts.
So, I think customer accounts are desirable and they have something useful in their trunk for both the sellers and the customers. However, making them mandatory is not a wise choice at all. For those who do not understand the importance of the customer accounts, they will not be interested in shopping with you if you make them necessary. As a result, the step taken for better eCommerce conversion rate will result in degraded conversion rates. But still, there are certain points which advocate how customers accounts can improve your eCommerce conversion rate by improving the UX for the customers.
Multiple Wish Lists with customer accounts-
Wish List has been a common feature in all eCommerce sites. Most of the sites have adopted this feature to improve their eCommerce conversion rates. It works by allowing the shoppers to save their desired product links in an easily accessible section, and then later they can browse these products whenever they have to buy them finally. It saves the customers from the task of researching the products when they actually want to buy it.