> ## Documentation Index
> Fetch the complete documentation index at: https://docs2.zenskar.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Invoices

## Overview

An invoice is a document issued by a seller to a buyer that outlines the products or services provided, along with the amount due for payment. It serves as a formal request for payment, detailing the terms of the transaction, including the quantity, price, taxes, payment terms, and the total amount payable.

Zenskar [ingests data from your data infrastructure](https://docs.zenskar.com/docs/how-zenskar-ingests-data) to generate accurate invoices for you.

## Generate invoice

> 🚧 Prerequisites
>
> You must [create and configure contracts](https://docs.zenskar.com/docs/contracts) before generating invoices.

1. For active contracts, invoices are automatically generated at the end of each billing cycle.
2. You can manually generate an invoice for a contract from **Contracts** > select the desired contract(s) > **Generate Invoice**.

## View invoice

1. Navigate to **Invoices** > **Invoices** in the left side panel.
2. Click on the row containing the invoice you are interested in.

## Life cycle of an invoice

**Life cycle of an invoice** refers to the stages that an invoice goes through from its creation to final payment. Refer to the [documentation on the life cycle of an invoice](https://docs.zenskar.com/docs/life-cycle-of-an-invoice).

## Branding invoices

Navigate to **Communications** > **Documents** and add relevant artifacts to customize the invoices per your company's branding guidelines.

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