But what I can assure you is that I see tremendous errors every day in many e-commerce sites that are easy to solve if you pay a minimum of attention.
Some are SEO and others not so much, but all are harmful to the main objective of an e-commerce: selling as much as possible, at the lowest possible cost.
I think you might find the post I wrote about copywriting in e-commerce useful to start thinking about language and how it can be a sales tool.
E-commerce in numbers
The data is incontestable: in 2016, e-commerce in indian email database Spain was already growing by 21% with a turnover of 24,185 million euros , and this figure rose to 10,000 million per quarter in 2018 .
Does this mean there is room for everyone?
I honestly don't think so, only those who work hard will survive.
I also think that it is a good opportunity for small and medium-sized companies that want to specialize and are really committed to it.
In fact, SMEs continue to increase their activity in e-commerce, with the following being the latest data available.

Most common mistakes in e-commerce - Evolution
The outlook is therefore for growth, so if you are thinking of setting up an e-commerce business, now is the time.
Of course, think before you act to achieve success because the competition is brutal.
Why is my e-commerce not working?
The million dollar question.
Surely, for a combination of reasons.
Each case is unique, but they all revolve around these axes:
Strategy.
Technology.
Operations.
In general, online sellers know about products but not about sales, and this is the origin of most problems.
It's great to have a great product, but if you don't know how to sell it, there's nothing you can do.
The Internet is war and if you don't have the weapons to fight it, you're out.