Tricks would be to get the product you sell at the lowest price possible. Because there is plenty of competition and some people have very low Average cost per unit.
-Make your listings appear as attractive as possible.
-Use a subtitle if the profit per item is good. Include as many pictures as possible, pictures is important as they directly trigger sales. High quality pictures should be included.
-Use all keywords that different buyers will use to browse your product ( TITLE )
-Customer satisfaction is the key on eBay. Make sure you provide as detailed descriptions as possible and answer all questions.
-Post out your orders as quickly as possible and Mark as shipped and provide a tracking number to the buyer and let them know about when they should be expecting the delivery. This increases that chances of receiving 5.0/5.0 ratings.
-5-star feedbacks is the key to success! Work your way in providing 100% customer satisfaction which will result in good feedbacks.
Keep working on building your feedbacks, you will probably have selling limits and good feedbacks is necessary to be allowaed a higher selling allowance. There are many tricks and tips that you will learn from experience. The more you sell the better you will get at selling.
Regarding Amazon, I have no idea. The above is directed towards eBay.
