Custom e-commerce development refers to the process of creating a tailored online shopping platform that meets specific business needs and requirements. Unlike off-the-shelf solutions, which offer standard features and functionalities, custom e-commerce development allows businesses to build a unique online store with distinct designs, user experiences, and functionalities. Here are some key aspects.

The advantages of custom E-Commerce Development are :

1. Complex Purchase Process
2. Technical Requirements
3. Unique Traffic volumes
4. Unique business processes
5. Nothing to manage
6. Scalability and Speed
7. Mobile commerce
8. Marketing and SE

1. WooCommerce 
2. Shopify
3. Squarespace
4. BigCommerce
5. Magento

1. Decide on selling either digital or physical products Digital Products are way more faster to sell, do not require inventory or any ongoing maintenance and allow you to set them up just once and sell them for years to come unlike physical products.
2. Embark on a little research and find a pressing problem a target niche of people are struggling with: You do this because people will only be interested in spending money on stuff that improves their lives isn't it?
3. Start gathering information and learning how to sell online like an expert: That's the reason so many online sellers fail, they choose to take “massive action” on things they know nothing about before sitting their asses down to learn some good best practices.
4. Make a highlight of the right (and best) tools and resources you'll need to succeed in your business, so you can avoid being overwhelmed by the tons of information out there which everyone claiming to be an expert would be suspiciously willing to give.
5. Build your storefront: You can easily do this with a solution like Payhip (for digital products) with merely the click of a button, or Shopify (for e-commerce) which should cost you some $29 per month.
6. Set up your products, either an e-book, or video course, or some physical product out there.
7. Implement the marketing strategies you've learned and drive relevant high-quality traffic to your store and make massive sales.
8. Track your results, do away with everything that's not working and focus your efforts on the ones that are, then double down on them and scale your profits to massive heights.