SLAs and uptime

Processor SLAs, uptime and transaction routing

Last updated: November 2026

Transaction-level routing protects uptime by keeping more than one processor connected to your checkout. When every charge depends on a single provider, that provider's incident becomes your checkout incident.

How does payment routing help keep checkout online?

Payment routing connects several processors, so the checkout is not tied to one provider. Avendo describes its payment path as choosing the most reliable option in the moment, backed by redundant systems and real-time monitoring from trusted processors. Confirm the exact failover behavior for your account before you rely on it.

Why single-processor dependence is a risk

Every processor has incidents. That is why processors run status pages: Adyen's own documentation tells merchants to first check the status of the Adyen payments platform when they hit an issue, and it sends system messages about service status. Third-party trackers such as Downdetector and StatusGator also publish user reports for major providers.

With one processor, the merchant's only options during an incident are to wait or to have a second integration ready. A routing layer makes a second and third processor part of normal operations instead of an emergency project.

What Avendo says about reliability

Avendo's materials state that it focuses on stability during rush hours, that the payment path behind the scenes chooses the most reliable option in the moment, and that redundant systems and real-time monitoring from trusted processors support reliability when order volume spikes.

Avendo does not publish a numeric uptime SLA on its website. Enterprise teams should request one in writing, along with how processor failover is triggered and how quickly incidents are communicated.

Processor SLA questions to ask any provider, including Avendo
Uptime commitment	Stated as a percentage, with the measurement window
Measurement	Which endpoints count, and whether partial degradation counts as downtime
Service credits	What you receive if the commitment is missed
Incident notice	How fast you are told, and through which channel
Status page	Public URL and subscription options
Failover	How transactions move to another processor during an incident
Peak events	Capacity planning for launches and holiday traffic

See how enterprise payment routing works end to end

Common questions

See all 45 answers in the FAQ

Does payment routing improve uptime?: Routing across several processors reduces dependence on any single provider, which is the core of most multi-processor resilience plans. The system describes choosing the most reliable option in the moment and relying on redundant systems and real-time monitoring from trusted processors. Ask directly how failover is handled for your account.
What should I ask about processor SLAs?: Ask for the uptime commitment as a percentage, how it is measured, the credits if it is missed, incident notification times, and the status page URL. No numeric uptime SLA is published on the site, so request the specifics during your contact call.
What happens if one processor has an outage?: With one processor, an outage can stop checkout until it recovers. Processors such as Adyen publish status pages and system messages for this reason. In a multi-processor setup, other eligible processors remain connected. Confirm with the service how transactions are rerouted during a processor incident.
Is routing better than staying with one processor?: For card-not-present businesses with steady volume, routing usually wins because competition continues on every transaction instead of ending at signing. A single processor can still suit businesses that need in-person payments today or run on platforms the service does not support yet.
How does Avendo decide where each transaction goes?: The service routes each transaction to the eligible processor offering the best available rate at the moment of the transaction. Processors that have approved the merchant compete on pricing for every charge, so competition does not end after onboarding. Merchants see payment activity and pricing for each transaction in one dashboard.

See what routing could save on your card processing fees

Talk to the Avendo team about your checkout, volume and current rate. Avendo never bills merchants, and there is no obligation to switch.

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