# The customer subscription object

A customer subscription object is returned as part of the response body of each successful list, retrieve, create or update API call to the `/api/customer_subscriptions` endpoint.

## Fields

| Field                            | Type       | Description                                                                                                                                                                                         |
| -------------------------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **type**                         | `string`   | `customer_subscriptions`                                                                                                                                                                            |
| **id**                           | `string`   | The customer subscription unique identifier                                                                                                                                                         |
| links.**self**                   | `string`   | The customer subscription endpoint URL                                                                                                                                                              |
| attributes.**customer\_email**   | `string`   | The email of the customer that owns the subscription.                                                                                                                                               |
| attributes.**reference**         | `string`   | A string that you can use to add any external identifier to the resource. This can be useful for integrating the resource to an external system, like an ERP, a marketing tool, a CRM, or whatever. |
| attributes.**created\_at**       | `datetime` | Time at which the resource was created.                                                                                                                                                             |
| attributes.**updated\_at**       | `datetime` | Time at which the resource was last updated.                                                                                                                                                        |
| attributes.**reference\_origin** | `string`   | Any identifier of the third party system that defines the reference code.                                                                                                                           |
| attributes.**metadata**          | `object`   | Set of key-value pairs that you can attach to the resource. This can be useful for storing additional information about the resource in a structured format.                                        |
| relationships.**customer**       | `object`   | The associated customer.                                                                                                                                                                            |
| relationships.**events**         | `array`    | The associated events.                                                                                                                                                                              |
| relationships.**versions**       | `array`    | The associated changes.                                                                                                                                                                             |
| relationships.**event\_stores**  | `array`    | The associated event stores.                                                                                                                                                                        |
| meta.**mode**                    | `string`   | The resource environment (can be one of `test` or `live`)                                                                                                                                           |