---
page_type: error
code: 50439
message: "50439: Account is not authorized to use the projected address"
level: ERROR
product: Programmable Chat
---

## Description

Address used as Projected Address does not belong to the account.

### Possible Causes

- The account does not own the Address (eg. phone number) used as a Projected Address.

### Possible Solutions

- Use a different address owned by the account.