# Prerequisites To create Subscription Schedules, it is necessary to have data in the following entities: * [Products](https://docs.inogic.com/subscription-and-recurring-billing-management/prerequisites/products) * [Plans](https://docs.inogic.com/subscription-and-recurring-billing-management/prerequisites/plans) * [Add-Ons](https://docs.inogic.com/subscription-and-recurring-billing-management/prerequisites/add-ons) {% hint style="success" %} For further queries, reach out to us at {% endhint %}