SendGrid incident: Messaging Event Delays for Comms API

Affected components

• WhatsApp Messaging

1. resolvedOct 2, 2026, 17:46 UTC

   The customer experience for impact is that Bulk Messaging API callers would receive an incorrect/improper 400 error response for Send Messages requests when supplying the address of Senders that were registered during the impact window. We have resolved this incident.

2. investigatingOct 2, 2026, 17:21 UTC

   We are investigating an issue with Messaging event processing for Comms API. Customers may experience delays in event updates for RCS, WhatsApp Business API, and Apple Messages for Business. We will provide another update in 15 minutes or as soon as more information becomes available.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in SendGrid's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Akamai: Origin Server Connectivity Issues with Elevated Errors in APAC RegionMinor · Sep 22, 2026, 14:28 UTC
• Cloudflare: Cloudflare One Clients are incorrectly challenged on some sitesMinor · Sep 22, 2026, 19:23 UTC
• Zoom: Service Degradation Affecting Customer Using Polycom Devices Going OfflineMinor · Sep 25, 2026, 17:45 UTC
• Twilio: MMS Delivery Delays from a Subset of Twilio Long Codes to GCI United StatesMinor · Sep 26, 2026, 03:16 UTC
• Clerk: Development instances only - Apple rejecting emailsMinor · Sep 28, 2026, 15:23 UTC
• Supabase: Intermittent latency in Eastern USMinor · Sep 29, 2026, 16:26 UTC
• LaunchDarkly: Elevated error rates in the LaunchDarkly applicationMinor · Oct 2, 2026, 14:10 UTC
• Linode: Service Issue - Object Storage - US-Southeast (Atlanta)Minor · Oct 2, 2026, 16:01 UTC

How often does SendGrid have incidents?

SendGrid reported 356 incidents in the last 90 days, 2 of them major or critical. A typical incident lasted 6h 17m. See SendGrid's uptime and incident history