# Conversation Participants

Manage contacts participating in conversations

 - [POST /conversations/{id}/customers](https://developers.intercom.com/docs/references/preview/rest-api/api.intercom.io/conversation-participants/attachcontacttoconversation.md): You can add participants who are contacts to a conversation, on behalf of either another contact or an admin. If you add a contact via the email parameter and there is no user/lead found on that works
 - [DELETE /conversations/{conversation_id}/customers/{contact_id}](https://developers.intercom.com/docs/references/preview/rest-api/api.intercom.io/conversation-participants/detachcontactfromconversation.md): You can remove participants who are contacts from a group conversation, on behalf of an admin. You cannot remove the last remaining contact from a conversation.