---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/45206#article
headline: "45206: Chat User is already a member of the Chat Channel"
url: https://www.twilio.com/docs/api/errors/45206
inLanguage: en
dateModified: 2026-06-09T11:00:42.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 45206: Chat User is already a member of the Chat Channel

Log Type: APPLICATION

Log Level: WARNING

## Description

Twilio returned this warning because your request attempted to add a Chat User to a Chat Channel where that user is already a member. Twilio does not create a duplicate membership for the same user in the same channel.

### Possible causes

* Your application sent the same add-member request more than once for the same Chat User and Chat Channel.
* Retry logic submitted a duplicate request after a timeout or delayed response.
* Your Flex integration attempted to add a worker or user to a channel without first checking existing channel membership.
* Concurrent requests in your application tried to add the same user to the same channel at nearly the same time.

### Possible solutions

* Check whether the user is already a member of the Chat Channel before creating a new membership.
* Update your application logic to make add-member requests idempotent so duplicate submissions do not trigger this warning.
* Review retry behavior in your client or server code and prevent automatic retries from creating duplicate membership requests.
* If you are using Flex, review the workflow or plugin logic that adds participants to chat channels and remove duplicate membership actions.
* Treat this warning as a non-fatal conflict when the intended result is that the user is already present in the channel.

#### Additional resources

* [Twilio Chat documentation](/docs/chat)
* [Twilio Flex documentation](/docs/flex)