Speed is what matters in e-Commerce nowadays and most of the time, the quicker speed you can provide your customers, the more satisfy they will become. SMS is one such tool that is able to help you deliver in-time service and instant support that your customer need. Email notification to keep customers updated and interact with your store is a good way, but it still have some disadvantages such as the open rate is low and the emails are very likely to be sent to spam box. Therefore, SMS notification is especially essential to online business, and without it, you risk losing loyal customers due to slow speed of customer support and real-time engagement between the stores and the customers.