---
page_type: error
code: 48033
message: "48033: Outgoing conversation: Invalid contact identity"
level: ERROR
product: Frontline
---

## Description

A conversation could not be created because the provided contact chat identity was invalid.

### Possible Causes

- The contact chat identity was not formatted properly.
- A reserved identity was used for contact chat identity.

### Possible Solutions

- Make sure that the contact chat identity returned from the CRM callback is formatted properly and does not violate the following rules.

  - Should not match a User SID pattern `US[0-9a-f]{32}`.
  - Should not be a reserved identity (`system`, `private`, `unique`).
  - Should not be longer than 256 characters.

- We recommend following the standard URI specification and avoid the following reserved characters `! * ' ( ) ; : @ & = + $ , / ? % # [ ]` for identity.