---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/50434#article
headline: "50434: Participant projected address not provided"
url: https://www.twilio.com/docs/api/errors/50434
inLanguage: en
dateModified: 2026-05-05T17:40:20.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 50434: Participant projected address not provided

Log Type: APPLICATION

Log Level: ERROR

## Description

This is a Group MMS conversation, but the given participant has neither an Address nor a ProjectedAddress.

### Possible causes

* You may have inadvertently provided an Identity (chat user), rather than an Address (mobile phone).
* You may have mistyped or inadvertently left out the ProjectedAddress parameter.

### Possible solutions

* [Provide a Projected Address](/docs/conversations-classic/group-texting#scenario-1-set-up-a-group-message-with-one-chat-participant-and-two-sms-participants) when adding this Participant to the Group Conversation. This is the correct path when adding Chat participants to a Group MMS conversation.