# Attempt to create a customer with an existing email.

The customer being created already exists.

---

## Example

```json
{
  "error": {
    "type": "request_error",
    "code": "customer_already_exists",
    "detail": "customer email conflicts with customer of id ctm_01ghbk4xjn4qdsmstcwzgcgg35",
    "documentation_url": "https://developer.paddle.com/errors/customers/customer_already_exists"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}
```

## Details

| Attribute | Value |
| --- | --- |
| Status code | 409 |
| Error code | `customer_already_exists` |
| Error message | customer email conflicts with customer of id %s |

## Common causes

- There were multiple requests to create a customer with the same email.
- A third-party integration you have authorized may be attempting to create a customer that already exists.

## Common solutions

- Make sure that you don't send multiple requests to create a customer with the same email.
- Get the id of the existing customer from the response and use that for other requests.