> ## Documentation Index
> Fetch the complete documentation index at: https://docs.guile.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Client Already Exists

> A client with this information already exists

## Cause

A client with the provided information already exists for this barber.

## Fix

Use the existing client or provide different client information. Fetch the existing client id from the roster and update that record instead of creating a duplicate.

## Retry safety

Not retryable until the underlying state or request changes.

## Raised by

These operations can return this problem:

* [Add a client](/api-reference/clients/add-a-client)

## Example

```json theme={null}
{
  "type": "https://docs.guile.app/problems/clientAlreadyExists",
  "title": "Client Already Exists",
  "status": 409,
  "detail": "A client with the provided information already exists for this barber."
}
```