Messaging Services Message Send Failures
Sep 9, 17:47 UTCSep 9, 17:47 UTC
Duration
0m
Impact
Informational
Root cause
Not disclosed
Twilio, 90 days
546 incidents
Affected
Not listed by the vendor.
Final update
Our engineers have investigated and resolved an issue with Messaging Services. From 10:28AM PDT on Tuesday, 7/21/26 to 6:00PM PDT on Friday, 9/4/26, customers may have experienced HTTP 400 responses with Twilio error code 21620 when sending messages through Messaging Services if the media URL parameter contained a comma. The issue has been resolved and all impacted services are operating normally.
Timeline
- Resolved · Sep 9, 17:47 UTC
Our engineers have investigated and resolved an issue with Messaging Services. From 10:28AM PDT on Tuesday, 7/21/26 to 6:00PM PDT on Friday, 9/4/26, customers may have experienced HTTP 400 responses with Twilio error code 21620 when sending messages through Messaging Services if the media URL parameter contained a comma. The issue has been resolved and all impacted services are operating normally.
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