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Help desk SLA metrics that matter on a wallboard

A practical guide · ~6 min read

A wallboard is read from across the room in a glance, so it can only carry a handful of numbers. Put the wrong ones up and it becomes noise people stop looking at. Here's which SLA and support metrics earn their place on the wall — and which are better left for your month-end report.

The test: can the team act on it right now?

That's the only question that matters for a wallboard. A metric belongs on the wall if seeing it change makes someone do something in the next few minutes — pick up a ticket, jump on a call, escalate a breach. If it only informs a decision next quarter, it's a report metric, not a wall metric.

Metrics that earn their place

• Tickets about to breach SLA. The single most actionable number on any support wall. Show a countdown that turns amber then red — the room rallies around at-risk tickets before they slip.
• Open / unassigned queue. How big is the backlog and how much is nobody's yet. Unassigned is the one people can clear immediately.
• Oldest ticket / longest wait. A single ageing ticket is often the real risk, hidden behind a healthy average.
• Live calls waiting (if you do phone). Calls waiting and longest hold, refreshed every ~20 seconds — see the call centre wallboard guide.
• CSAT, by agent. Quality, not just speed — it keeps "close it fast" from becoming the only goal.
• Solved vs target today. A simple progress bar gives the team something to chase.

Metrics to leave for the report

These matter — they just don't belong on a live wall, because nobody can act on them in the moment:

• Monthly ticket volume trends and seasonality.
• First-contact resolution rate over time.
• Backlog burn-down across weeks.
• Cost per ticket, deflection rate, channel mix analysis.

Keep these in your help desk's reporting or a BI tool. (If you're weighing a BI tool against a live wall, the Zendesk Explore comparison covers the split.)

A sensible default layout

For most support desks, a strong starting wall is: a KPI strip across the top (first response, tickets this week, CSAT, unassigned, calls waiting), the live queue with SLA countdowns, an agent leaderboard, and a solved-vs-target bar. Rotate any extras on a timer rather than cramming them in.