Customer Support KPIs: 10 Metrics to Measure Support Performance
You can't improve what you don't measure, but you also don't need a wall of dashboards. For most small teams, a handful of customer support KPIs tell you everything: how fast you answer, how well you solve problems and how customers feel about it. Here are the ten worth tracking and how to use them.
Speed metrics
1. First response time (FRT)
What it is: how long a customer waits for the first human reply. How to calculate: the median time from a ticket or chat arriving to the first agent reply. Why it matters: it's the number customers feel most. Use the median, not the average, so one weekend ticket doesn't distort it. Good looks like: under a minute for live chat, within a few business hours for email. See how to reduce first response time.
2. Average resolution time
What it is: how long it takes to fully solve a request. How to calculate: median time from arrival to "solved". Why it matters: fast first replies mean little if problems drag on for days.
3. SLA compliance
What it is: the share of tickets that met your response and resolution targets. How to calculate: tickets within target ÷ all tickets × 100. Why it matters: it turns speed into a promise you can check. Our guide to support SLAs for small teams explains how to set targets.
Quality metrics
4. Customer satisfaction (CSAT)
What it is: the share of customers who rated an interaction positively. How to calculate: positive ratings ÷ all ratings × 100. Why it matters: it's the most direct measure of whether you helped. Read our full guide to CSAT surveys.
5. First contact resolution (FCR)
What it is: the share of problems solved in a single reply or conversation. How to calculate: tickets solved with one agent reply ÷ all solved tickets × 100. Why it matters: every extra back-and-forth costs time and patience.
6. Reopen rate
What it is: the share of solved tickets the customer had to reopen. Why it matters: a high reopen rate means tickets are being closed before problems are really fixed.
Volume and efficiency metrics
7. Conversation volume by channel
What it is: how many tickets and chats arrive per day, per channel. Why it matters: it tells you when to have people online and which channels deserve attention. Volume spikes after a release usually point to a product problem.
8. Missed chats
What it is: chats that ended before an agent answered. Why it matters: each one is a customer (and possibly a sale) you lost. Missed chats by hour of day show exactly when you're understaffed.
9. Self-service and AI resolution rate
What it is: the share of questions answered by help articles or an AI assistant without a person. Why it matters: it's the biggest lever on cost. Track it alongside CSAT, so automation doesn't quietly make support worse. See how to reduce customer support costs.
10. Cost per conversation
What it is: total monthly support cost ÷ conversations handled. Why it matters: it shows whether improvements are paying off as you grow.
Agent metrics: use with care
Per-agent numbers (chats handled, response time, CSAT) are useful for coaching and for spotting who's overloaded. But don't turn them into a leaderboard. Agents who take the hardest tickets will always look slower, and chasing speed at the expense of quality hurts customers.
A ten-minute weekly review
You don't need a monthly analytics project. Once a week:
- Check first response time and missed chats. Are you understaffed at certain hours?
- Read every negative rating. What went wrong, and is it a pattern?
- Look at the top three ticket reasons. Can a help article, a product fix or a saved reply remove any of them?
- Check failed help center searches. Each one is a missing article.
- Pick one thing to improve this week. Just one.
Set targets you'll keep
Start with your current numbers, not industry benchmarks. If your median first response is six hours, aim for four, not five minutes. Improve, measure again, then raise the bar.
Get the numbers without spreadsheets
Our help desk reports response and resolution times, SLA performance, agent performance, satisfaction ratings and the search terms people couldn't find, across chat, email and messaging channels. Start free and see your first week of numbers.