What are the prospects and challenges of marketing digital product?

Digital marketing programs are highly complex and ever changing. It also helps for small scale businesses and medium scale businesses to improve their business extensions using online medium to reach potential to buyers who can help you to with double business revenue.The following are the challenges of digital marketing 1)Generating traffic 2)Producing effective refferals 3)Become a video expert 4)Keeping up with web trends 5)Keeping the customer first