# Create Customer

```
POST 
/customers
```

Creates a customer.

Every field is optional — a customer with no details at all is valid, and useful if you only want somewhere to attach saved payment methods.

Pass the returned `id` as `customerId` when you [create a payment](https://docs.monei.com/apis/rest/payments-create/) or a [subscription](https://docs.monei.com/apis/rest/subscriptions-create/) to link it to this buyer.

**What linking does**:

* A payment saved with `generatePaymentToken` stores its payment method under this customer
* The customer's details are copied onto the payment at the time it is made. Editing the customer later never rewrites a payment that already happened
* A subscription gains renewal failover across the customer's other saved payment methods

**Best practices**:

* Create the customer once, when the buyer first registers with you, and reuse the `id`
* Use `metadata` to store your own user identifier, so you can match your records to MONEI's

## Request[​](#request "Enlace directo al request")

## Responses[​](#responses "Enlace directo al Responses")

* 200
* 400
* 401
* 404
* 422
* 500
* 503

A customer object

The request is incorrect or could not be processed

Unauthorized error. Please check your auth credentials

The specified resource was not found

The request was well-formed but could not be processed due to semantic errors

Unexpected server error

The service is temporarily unavailable