The Customer Effort Score (CES) is a metric used by businesses to gauge the ease of customer interactions and experiences with their products or services. It is a straightforward approach that asks customers to rate the level of effort they had to put in to get an issue resolved, a request fulfilled, or a product purchased or returned. Unlike other metrics such as Net Promoter Score (NPS) or Customer Satisfaction (CSAT), CES focuses on the simplicity and efficiency of the customer journey.