SLA. The promise that should have a number behind it.

A working SLA has three components. A defined metric (close in five business days, ticket response in four hours, uptime of 99.5 percent). A measurement methodology (who measures, how often, what window). A consequence when the metric is missed (a service credit, an escalation path, a step toward termination right). Without all three, the SLA is decorative. It tells the buyer what good looks like but does nothing when the seller misses.

Sellers prefer SLAs that mirror their internal operating standards. That is a reasonable position. The risk for the buyer is that those internal standards may be set for the seller's prior operating context, not the buyer's standalone business. A finance close SLA written around the seller's quarterly cadence may not match the buyer's monthly external reporting obligations. A help desk SLA written around the seller's headquarters time zone may not cover the buyer's regional operations. The mismatch is where buyer-side review adds the most value pre-signing.

Service credits are the teeth. A 5 percent credit on the affected service line for each missed period is a starting point that pressure tests whether the seller intends to perform. A pure best efforts clause without credits is a signal that the SLA is not meant to be operative. In dispute resolution, the buyer's leverage rests almost entirely on what the SLA section actually says.

Where the term appears

In the service schedules of the TSA, attached to each named service. In monthly governance committee reports, where actual performance is measured against the SLA. In invoice disputes, where the buyer claims service credits for missed targets. In termination notices, where repeated SLA failures support a buyer's right to exit a service line early.

Related terms

Service Credit · Service Catalog · Governance Committee · Transition Services Agreement · Workstream