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Outage in Vercel

Elevated errors across multiple services in IAD1

Resolved Minor
May 07, 2026 - Started about 7 hours ago - Lasted about 5 hours
Official incident page

Incident Report

Summary AI Generated

Vercel experienced elevated invocation failures for Serverless Functions, Edge Functions, and Edge Middleware in the IAD1 region, with Workflows and Queues also affected by processing delays and message backlogs. Traffic was rerouted to nearby regions as a mitigation measure during the 5.4-hour incident. The issue was resolved through deployed fixes, with services returning to normal operation and traffic gradually being restored to the IAD1 region.

Some Vercel functions that run in the IAD1 region are experiencing elevated invocation failures. We are investigating the issue and will share more information as it becomes available.

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Latest Updates ( sorted recent to last )
RESOLVED about 2 hours ago - at 05/08/2026 06:39AM

We've deployed mitigations and all services are operating normally. Traffic may continue to reroute to nearby regions for the next few hours, but we will restore traffic gradually after verifying system availability in the IAD1 region.

MONITORING about 4 hours ago - at 05/08/2026 04:54AM

We implemented a fix and are monitoring the results. Backlogs for Workflows and Queues will be processed within the next few hours.

IDENTIFIED about 6 hours ago - at 05/08/2026 02:33AM

New workflow runs and queue messages are being processed now. Processing the backlog of existing workflow runs and queued messages is still being investigated.

IDENTIFIED about 6 hours ago - at 05/08/2026 02:18AM

We are continuing to work on a fix for this issue.

IDENTIFIED about 6 hours ago - at 05/08/2026 02:13AM

New messages to Vercel Workflows and Vercel Queues are being queued, but message processing is paused. Queued messages will be processed when service is restored.

IDENTIFIED about 7 hours ago - at 05/08/2026 01:47AM

Traffic to the IAD1 region has been re-routed to nearby regions. Functions configured in IAD1 will be invoked in a different region if failover regions are configured, but if no other regions are configured, the function will still be invoked in IAD1.

IDENTIFIED about 7 hours ago - at 05/08/2026 01:18AM

Some Vercel functions that run in the IAD1 region are experiencing elevated invocation failures. We are investigating the issue and will share more information as it becomes available.

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