---
page_type: error
code: 50443
message: "50443: Failed to add a projected address to a participant."
level: ERROR
product: Programmable Chat
---

## 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.