Essential Skills to learn before creating / purchasing / operating an E Commerce business

1. Marketing

2. Product / category selection

3. Customer service

4. Operations and fulfillment

How do you get the product from point A to point B
And what do you do when things go wrong
How do you handle returns
Do you have a warehouse
Do you outsource your warehousing
Do you use 3rd party shipping companies or do you have your own fleet of trucks
What about international shipments
Etc

5. Analytics

how to measure success and optimize for that success
How to run A/B tests
How to know which marketing is working and which isn't so you can stop the stuff that isn't working and double down on what is working

6. Picking the right eCommerce platform for your business

There are many, many platforms out there (we use Shopify here at NotePD), but each has their strengths and weaknesses
The platform should allow for easy scaling, customer service, inventory management, etc