Resolved on September 9, 2026, affecting Messaging Services.
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.
Affected components
Update timeline
- resolved Sep 09, 2026, 05:47 PM 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.
Your product runs on more than Twilio
Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.
Amazon Web Services