Service level agreement (SLA)

A service level agreement (SLA) is a commitment between a provider and a customer that defines the level of service expected, using measurable targets such as uptime or response time, along with the remedies that apply if those targets are missed.

Why it matters in B2B sales

For enterprise buyers, the SLA is often a deal requirement, not a nicety: it is how they hold a vendor accountable after signing. A credible SLA with clear metrics and remedies builds trust and can differentiate you from rivals who stay vague.

It usually sits alongside the master service agreement and is scrutinized during security and procurement review. A confident, specific SLA signals operational maturity, while a hedged or missing one raises exactly the risk questions that stall enterprise deals.

What an SLA includes

A strong SLA specifies the services covered, the metrics that define good service (uptime percentage, response and resolution times, error rates), how those metrics are measured and reported, the remedies for missing them (typically service credits), and any exclusions such as scheduled maintenance. The remedies section is what gives the SLA teeth, without a consequence, a target is just an aspiration.

Common SLA metrics

The metrics depend on the service but commonly include availability or uptime (for example, 99.9%), response time (how fast the provider acknowledges an issue), resolution time (how fast it is fixed), and often severity tiers that set different targets for critical versus minor issues. Buyers pay close attention to how uptime is calculated and what counts as excluded downtime.

A concrete example

A SaaS provider's SLA commits to 99.9% monthly uptime, a one-hour response time for critical issues, and service credits if those targets are missed. During evaluation the buyer's team reviews it against the security documentation before approving the purchase, using it to gauge how seriously the vendor takes reliability.

How it shows up in a modern proposal workflow

SLA commitments must match what sales promised, an SLA that undercuts a verbal promise erodes the trust the deal was built on. Cobl keeps the SLA terms consistent with the rest of the deal documents, so what the buyer reads in the sales proposal is exactly what the contract commits to.

That alignment matters most in enterprise deals, where legal and security teams compare the proposal, SLA, and contract line by line, and any gap between them becomes a negotiation delay.