Enterprise Service Level Agreement — Uptime and Availability. The Service Provider guarantees a monthly uptime percentage of 99.95% for all production services covered under this Agreement. Uptime is calculated as the total number of minutes in the calendar month minus the number of minutes of Downtime, divided by the total number of minutes in the calendar month. Downtime is defined as any period during which the production API returns HTTP 5xx errors for more than 50% of requests over a rolling 5-minute window, as measured by the Service Provider's external monitoring infrastructure. Scheduled maintenance windows, defined as Sundays between 02:00 and 06:00 UTC with at least 72 hours advance notice, are excluded from Downtime calculations. For each 0.1% that the monthly uptime percentage falls below the 99.95% guarantee, the Customer shall receive a service credit equal to 10% of the applicable monthly fee, up to a maximum credit of 30% of the monthly invoice. Service credits must be requested within 30 days of the end of the affected month and are applied as a deduction against future invoices.