# Twilio Accounts May Not Be Able to Add a Participant to a Conference Using the Create Participant API, or Modify the State of a Conference Participant (Hold, Unhold, Mute, Unmute) via the Participants API

- Provider: [Twilio](https://down.guide/twilio)
- Level: confirmed
- Impact: Degraded
- lasted 2h 13m
- started 2026-05-27 21:22 UTC
- Conference US1, Conference AU1, Conference IE1 +1
- id: DWN-8bb33cdb75
- Official page: https://stspg.io/5y9y9khs9qjx

## Updates from Twilio
### 2026-05-27 21:22 UTC: investigating
We are investigating an issue with Twilio Accounts that may not be able to add a participant to a Conference using the Create Participant API, or modify the state of a Conference Participant (Hold, Unhold, Mute, Unmute) via the Participants API. We will provide another update in 1 hour or as soon as more information becomes available.

### 2026-05-27 22:06 UTC: monitoring
We also determined that this issue is also impacting Flex. Our engineers have implemented a fix and are monitoring system performance. We will provide another update in 2 hours or as soon as more information becomes available.

### 2026-05-27 23:35 UTC: resolved
Our engineers have monitored the fix and confirmed the issue with Flex and Twilio Conferences has been resolved. All services are now operating normally at this time.

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