SLA Uptime and Service Credits: Remedies, Exclusions & Chronic Failure
An SLA is only useful if uptime math, exclusions, credit claims, and chronic-failure remedies match the operational risk.
Last reviewed: May 26, 2026 by the BizLeaseCheck Editorial Team
General information, not legal advice.
Overview
Service-level agreements often look customer-friendly because they promise 99.9% or 99.99% uptime. The real terms are the measurement window, exclusions, claim process, credit amount, and whether credits are the sole remedy.
Vendors should avoid SLA promises that engineering and support cannot measure or deliver. Customers should avoid service credits that are too small to matter when downtime harms operations.
Topics to check
A monthly 99.9% uptime commitment allows about 43 minutes of downtime in a 30-day month before credits are triggered. A 99.99% commitment allows about 4 minutes.
Check whether uptime is measured by service-wide availability, customer tenant availability, API availability, or a narrow production endpoint.
Many SLAs say service credits are the sole and exclusive remedy for downtime. That phrase can matter more than the credit percentage.
Customers should ask for termination rights after repeated or severe failures. Vendors should define exclusions for maintenance, customer systems, force majeure, beta features, misuse, and third-party networks.
UCC § 2-719 — exclusive remedies referenceSupport tables often promise response times, not fix times. A one-hour response for critical issues may still leave the customer without a restoration deadline.
If operations depend on the service, review escalation paths, severity definitions, business-hours limits, excluded support channels, and incident-report obligations.
Key takeaways
- Convert uptime percentages into actual downtime before negotiating.
- Check whether credits are the sole remedy.
- Look for exclusions that remove the outages most likely to happen.
- Add chronic-failure termination rights when credits are not enough.
- Response times do not equal resolution times.
Official resources
Legal-review notes
Guide confidence marker: Medium confidence.
- Whether an exclusive-remedy clause limits other claims depends on governing law, transaction type, and how the MSA, SLA, and liability cap interact.
- Any uptime or credit benchmark should be checked against product architecture and customer operational dependency.
Frequently asked questions
Is 99.9% uptime good enough?
It depends on operational dependency, data sensitivity, redundancy, and available workarounds. For mission-critical systems, credit size and termination rights can matter as much as the percentage.
What is a service credit?
A service credit is usually a credit against future fees after an SLA miss. It is not always a cash refund and may require a timely claim.
What is chronic-failure termination?
It is a right to terminate after repeated or severe SLA failures, often after a defined number of misses in a rolling period.