The first step is to create a business plan. This will help you map out your business goals and objectives and figure out the best way to achieve them. Next, you need to choose a business model and select the right platform for your ecommerce store. Once you have your store set up, start creating compelling product descriptions and photos to attract customers. Then, start promoting your store through online marketing and social media. Finally, make sure you provide excellent customer service to keep your customers coming back.