> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fusioncore.us/llms.txt
> Use this file to discover all available pages before exploring further.

# Subscriptions Overview

> How fusionCore manages recurring memberships and subscription products — plans, subscription purchase activities, renewals, and the start date updater.

fusionCore Subscriptions manages recurring memberships and subscription products — the plans that define their terms, the subscription Purchase Activities that record them, and the renewals that keep them going. The general [Purchase Activity](/end-user-guides/orders/purchase-activities/index) record and the Order-level **installments** and **auto-charge** features live in [Orders and Opportunities](/end-user-guides/orders/index), since they apply to any Order.

<CardGroup cols={2}>
  <Card title="Subscription Plans" icon="file-contract" href="/end-user-guides/subscriptions/subscription-plans/index" arrow="true">
    Define term length and renewal behavior with the Anniversary and Calendar plan types.
  </Card>

  <Card title="Subscription Purchase Activities" icon="receipt" href="/end-user-guides/subscriptions/subscription-purchase-activities" arrow="true">
    The subscription records created when an Order is activated — view them, track membership, and handle Advanced Joins.
  </Card>

  <Card title="Subscription Renewal" icon="arrows-rotate" href="/end-user-guides/subscriptions/subscription-renewal/index" arrow="true">
    How the nightly batch generates renewal Orders, and how to configure it.
  </Card>

  <Card title="Subscription Start Date Updater" icon="calendar-pen" href="/end-user-guides/subscriptions/subscription-start-date-updater" arrow="true">
    Keep an open quote's subscription start date current until the Order is activated.
  </Card>
</CardGroup>

## Related Features

Subscription billing builds on these Order-level features in [Orders and Opportunities](/end-user-guides/orders/index):

<CardGroup cols={2}>
  <Card title="Installments" icon="calendar-days" href="/end-user-guides/orders/installments/index" arrow="true">
    Split an Order's balance into scheduled payments — including subscription renewals.
  </Card>

  <Card title="Auto-Charge" icon="credit-card" href="/end-user-guides/orders/auto-charge/index" arrow="true">
    Automatically collect scheduled installment payments, including on renewals.
  </Card>
</CardGroup>