Most outsourcing SLAs measure whether the provider was busy rather than whether customers were served. The clauses that matter, the ones that create bad behavior, and what to leave out.
An SLA is a behavior design document
Whatever an SLA measures is what the program will optimize for, whether or not that is what you wanted. That makes it the most consequential document in an outsourcing relationship and the one most often assembled from a template.
The test to apply to every clause: if the provider maximised this number and ignored everything else, would customers be better off? A surprising number of standard clauses fail it.
The clauses worth having
- Service level, stated as a pair. "Eighty per cent of calls answered within twenty seconds", measured at a defined interval. A percentage without a time is not a target.
- Abandonment rate. Service level's honest companion — without it, a provider can hit the target while callers give up.
- Quality score against an agreed scorecard, with calibration sessions written into the agreement so you and the provider score the same call the same way.
- First contact resolution, defined at issue level across channels over a stated window. Define it in the contract or it will be defined generously later.
- Customer satisfaction or effort, with the survey method and timing fixed, since both materially change the result.
The clauses that create bad behavior
Average handle time as a target. The fastest way to reduce it is to stop solving problems. Track it, never target it.
Occupancy as a target. Pushing occupancy up destroys service level and drives attrition, and you will pay for both.
Transfer rate in isolation. Punishing transfers produces agents who keep calls they cannot resolve.
Too many targets. A dozen weighted metrics produce a program optimizing for whichever is most visible. Five or six that genuinely matter beat twelve that dilute each other.
Define measurement, exclusions and remedies precisely
Most SLA disputes are definitional rather than performance-related. Write down which system is the source of truth, at what interval performance is measured, and whether reporting is daily, weekly or monthly — a target met monthly can hide a fortnight of failure.
Agree exclusions in advance and keep them narrow: genuine force majeure, volume outside an agreed forecast band, and failures caused by your own systems. Beware exclusions broad enough to cover anything inconvenient.
On remedies, service credits are standard and rarely change behavior, because the sums are small against the contract. What does change behavior is a defined escalation path with named people, a remediation plan required after a defined number of misses, and a termination right tied to sustained failure. Structure it as a ladder rather than a fine.
Leave room to change it
The targets you set before launch are guesses. Build in a formal review — at ninety days and then periodically — where both sides can propose changes based on what the data showed. Programs that never revisit their SLA end up with a provider hitting numbers nobody believes in any more, and a client who cannot say why the relationship feels wrong.
See how to structure the RFP that precedes this, or read about how quality is monitored on live programs.
Frequently asked questions
What service level should we set?
Set it from what a wait actually costs you rather than from a benchmark. Eighty per cent in twenty seconds is a common voice standard, but an emergency line or a high-value sales line justifies something tighter, and a low-urgency support queue may be perfectly well served by something looser and cheaper. Every increment of speed is bought with staffing, so decide what the wait is worth before you decide the number, and be prepared to pay for what you ask for.
Are service credits worth negotiating hard?
They are worth having and they rarely change behavior, because the amounts are usually small relative to the contract and a provider can absorb them more cheaply than fixing the underlying problem. What actually changes behavior is a ladder: a defined escalation path with named people on both sides, a mandatory remediation plan after a set number of misses, and a termination right tied to sustained failure. Spend your negotiating effort there.
Should the SLA cover every channel?
Yes, with targets appropriate to each rather than one number stretched across all of them. Voice is measured in seconds, chat in seconds to first response with a concurrency assumption behind it, email in hours, and social in a window shaped by public visibility. A single blended target across channels is easy to write and tells you almost nothing, because a strong voice performance will mask an email backlog indefinitely.
How often should performance be reviewed?
Operational reporting weekly, a formal governance review monthly, and a substantive relationship review quarterly where targets themselves can change. The trap is measuring only monthly: a monthly target can be met while containing a fortnight of failure that customers experienced and your reporting smoothed away. Weekly visibility is what lets you intervene during a problem rather than discussing it afterwards.
Running the operation
Keep reading
The rest of this cluster, for the question you are actually working through.
- First Call Resolution: The Metric Most Contact Centers Measure Wrong
- CSAT, NPS, CES and the Metrics Worth Putting on a Dashboard
- How to Reduce Call Abandonment Without Just Adding Agents
- Call Center Attrition: What It Really Costs and What Reduces It
- Seasonal Support Staffing: Covering a Peak Without Carrying It All Year
- PCI Compliance in a Call Center: Where Card Data Actually Leaks