# Billing Documents

 **Note: The API operations in this section have been deprecated.**           <p>          Billing Documents represent your customer's invoices, credit memos and debit memos. Invoices are statements of amounts owed by a customer, and are either generated one-off, or generated periodically from a subscription. They contain invoice items, and proration adjustments that may be caused by changes to a subscription. If your invoice is configured to be charged automatically, Zuora automatically finalizes your invoice and attempts payment otherwise Zuora will email the invoice to your customer and await payment. Any customer credit memos may be applied before determining the amount due for the invoice (i.e., the amount that will be charged).</p>

## Retrieve a billing document

 - [GET /billing_documents/{billing_document_id}](https://developer.zuora.com/other-api/quickstart-api/billing-documents/getbillingdocument.md): Retrieves the billing document with the given ID.

## List billing documents

 - [GET /billing_documents](https://developer.zuora.com/other-api/quickstart-api/billing-documents/getbillingdocuments.md): Returns a dictionary with a data property that contains an array of billing documents, starting after cursor. Each entry in the array is a separate billing document object. If no more billing documents are available, the resulting array will be empty. This request should never return an error.

## Create a billing document

 - [POST /billing_documents](https://developer.zuora.com/other-api/quickstart-api/billing-documents/postbillingdocument.md): Creates different types of billing document objects, including invoices, credit memos, and debit memos.