# Subscription periods

The Subscription period represents a period in a [subscription](/reference/api/subscriptions). These are created by the system at the interval you specified or by yourself when using an "on-demand" subscription.

The [payment](/reference/api/payments) created to charge the customer is associated with the subscription period as well as other payments that might happen if the first one fails or when a customer repays after a chargeback.


## Retrieves a subscription period

 - [GET /subscription_periods/{id}](https://docs.paypro.nl/reference/api/subscription-periods/retrievesubscriptionperiod.md): Retrieves a single subscription period based on the id.

## Retrieves a list of payments that belong to this subscription period

 - [GET /subscription_periods/{id}/payments](https://docs.paypro.nl/reference/api/subscription-periods/retrievelistofpaymentsbysubscriptionperiod.md): Retrieves a list of payments that belong to this subscription period.