To improve customer experiences, brands are increasingly turning to data to give them insights and direction. Some of the benefits include helping brands personalize the customer experience. This creates a more enjoyable and memorable moment for customers. In return, they can become repeat customers. Plus, they may tell others about their (hopefully) great experience. Also, a company can pinpoint what works and what needs improvement with the current CX strategy.
https://www.forbes.com/sites/steveolenski/2018/07/26/using-data-to-transform-the-experience/