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

# Defining bill runs in Zuora

## Overview

In Zuora, bill runs are required in order to generate recurring invoices\*\* for subscriptions.  Without an active or scheduled bill run, invoices will not be automatically created.

## Learn more

For detailed instructions on creating recurring (scheduled) bill runs in Zuora, see [Zuora Knowledge Center - Manage scheduled bill runs](https://knowledgecenter.zuora.com/Zuora_Billing/Bill_your_customers/AB_Automate_billing_document_generation/Bill_runs/Manage_scheduled_bill_runs).