---
title: "How can you add a customer purchase order to invoices in ServiceTitan?"
slug: "add-a-customer-purchase-order-to-invoices-in-servicetitan"
tags: ["Area - Accounting", "Area - Inventory and POs", "Focus - Construction", "Focus - Service Replacement", "Role - Accountant", "Role - Admin", "Type - Commercial", "Type - Residential"]
updated: 2026-10-16T00:24:08Z
published: 2026-10-16T00:24:08Z
canonical: "help.servicetitan.com/add-a-customer-purchase-order-to-invoices-in-servicetitan"
---

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

# How can you add a customer purchase order to invoices in ServiceTitan?

## Problem

You need to add a customer's PO to an invoice. For example, you need to add their PO to the invoice for a commercial membership sale or renewal.

## Solution

To add a customer purchase order (PO) to your jobs and invoices in ServiceTitan, enable the *Customer PO #* field in Settings.

### Enable Customer PO # field

1. Go to the navigation bar and click **Settings ![A simple icon representing a settings gear. ](https://cdn.document360.io/961862ab-d0f2-4d91-bb62-a62ee8184eff/Images/Documentation/icon-gnav-settings-inactive.png?sv=2026-02-06&spr=https&st=2026-11-09T11%3A39%3A43Z&se=2026-11-09T12%3A39%3A43Z&sr=c&sp=r&sig=b%2FaWiD1ehbv4D6ocmMNEfKonJZQ%2FUNmdNJXJQmyTDjo%3D)**.
2. In the side panel, go to **Operations > Job Bookings**.
3. Select the *Customer PO #* option to enable the customer PO field in ServiceTitan. This field is searchable, making it easier to manage and reference.

By enabling this feature, you create a designated location for the customer PO on your invoices, which is more professional and convenient for customer accounting purposes.