# 53200: Participant identity is invalid

Log Type: APPLICATION

Log Level: ERROR

## Description

Raised whenever a Participant identity is invalid, and the scenario is not covered by a more specific error code.

### Possible causes

The Participant identity does not adhere to the Participant identity requirements.

Possible causes:

* The identity is null or an empty string.
* Another Participant with the same identity already exists in the Room.
* The identity has more than 128 characters (NOTE: Double-byte characters are counted as 2 characters).

### Possible solutions

* Choose a Participant identity adheres to the Participant identity requirements.