---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/50443#article
headline: "50443: Failed to add a projected address to a participant."
url: https://www.twilio.com/docs/api/errors/50443
inLanguage: en
dateModified: 2026-03-11T20:43:38.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 50443: Failed to add a projected address to a participant.

Log Type: APPLICATION

Log Level: ERROR

## Description

The conversation participant being updated can not have a projected address.

### Possible causes

* You are trying to add a projected address to a participant with messaging binding assigned.

### Possible solutions

* Check that the request does not update projected address of this particular participant.