Reference Information {#rb-subs-migration-7-reference}
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This section contains reference information for migrating subscriptions from the current subscriptions platform to Recurring Billing subscriptions on the `Cybersource` platform.
This reference information is supplemental to [Task 4: Create New Subscriptions](/docs/cybs/en-us/recurring-billing/migration/all/rest/recurring-billing-migrate/rb-subs-migration-4-new-subs.md "").

* **How to access and use the interactive REST API reference.** The `Cybersource` Developer Center includes an interactive *REST API Reference*. As you write your script, you can use the interactive module to help construct request messages for creating Recurring Billing plans and subscriptions.
* **How to create a subscription for a one-time plan.**These topics provide detailed information about how to request the creation of a subscription that uses a one-time plan.
* **How to create a subscription for an existing plan.**These topics provide detailed information about how to request the creation of a subscription that uses an existing plan.
* **How to create a subscription with plan overrides.**These topics provide detailed information about how to request the creation of a subscription that uses plan overrides.