Customer service KPIs: 7 numbers that support better decisions

Understand first response time, resolution time, satisfaction and other customer service KPIs without misleading comparisons.

A useful report does not add more numbers; it answers an operational question. Are we responding faster, solving requests the first time and distributing pressure fairly?

First response time

Measure from the customer’s message to the first useful reply. Separate channels and business hours, and do not count a generic automatic message as a solution while the customer still waits for a person.

Average resolution time

Measure from opening to actual closure. Review the median alongside the average so a few long cases do not hide the real picture.

First-contact resolution

A higher rate of cases solved without reopening or repeated transfer suggests that the team has clearer context and tools. A low rate may reveal missing information or permission, not poor agent performance.

Customer satisfaction

Ask one short question after resolution and watch the participation rate as well as the score. Written comments often explain the number and reveal repeated issues.

Volume, distribution and quality

Track conversations by hour, channel and agent, plus abandonment and reopening. Speed alone can encourage quick replies with weak solutions, so read the indicators together.

Frequently asked questions

Which KPI should I start with?

Start with first response and resolution time, then add satisfaction and reopening to understand quality.

Should I compare agents directly?

Only after accounting for request type, channel and working hours; otherwise the comparison can be misleading.

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