Once you have set your customer support goals, you need to measure and monitor them using relevant metrics and key performance indicators (KPIs). These KPIs are quantitative and qualitative indicators that show how well you are achieving your goals and where you need to improve. Common customer support metrics and KPIs include Customer Satisfaction (CSAT), Net Promoter Score (NPS), Customer Effort Score (CES), First Response Time (FRT), Resolution Time (RT), First Contact Resolution (FCR), Customer Retention Rate (CRR), and Customer Churn Rate (CCR). CSAT shows the degree to which customers are happy with your service, NPS measures the likelihood of customers recommending your service, CES evaluates the ease of resolving issues or queries, FRT is the average time it takes for your customer support team to respond to a customer inquiry or issue, RT is the average time it takes for your customer support team to resolve a customer inquiry or issue, FCR is the percentage of inquiries or issues resolved on the first contact, CRR is the percentage of customers who continue to use your service over a given period of time, and CCR is the percentage of customers who stop using your service over a given period of time.