What is a PO Number: Definition and Usage in Invoicing [+Examples]

30 June, 2023
5 min
Sahil Hakim, VP - Product Marketing

Table of Content

Key Takeaways
Introduction
What is a Purchase Order Number?
Why are PO Numbers Important?
Practical Examples and the Structure of PO Numbers
How to Create a Purchase Order Number System
FAQ
Conclusion

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Key Takeaways

  • Gain insights into the essential role PO Numbers play in facilitating efficient business transactions.
  • Explore the various ways PO Numbers are structured across different industries.
  • Discover how to create a reliable PO Number system for your business.
keytakeway

Introduction

Welcome to the fast-paced business world, where cash is king and record-keeping is the power behind the throne. Today, we’re diving into a pivotal component of this realm – the Purchase Order (PO) Number. It’s a fundamental yet often overlooked tool that can make or break your operations. So, buckle up, and let’s get started.

What is a Purchase Order Number?

A PO (Purchase Order) number is a unique identifier assigned to a specific order made by a buyer to a seller. It helps both parties track and manage the transaction, including details such as items purchased, quantities, prices, and delivery dates.

PO number streamlines the purchasing process and provide a reference point for communication and documentation between buyer and seller.

Why are PO Numbers Important?

Every effective business runs on accountability and trackability. The humble PO number is key in this equation, and here’s why:

  1. Tracking Transactions: A PO number helps trace every step of a transaction, from order placement to product delivery and payment.
  2. Financial Auditing and Record-keeping: They provide a systematic way to locate and verify transactions during audits. It’s like leaving breadcrumbs for your accountant.
  3. Managing Orders and Dispute Resolution: PO numbers act as a common reference point between buyer and supplier, which can be particularly handy if disputes arise.
  4. Streamlined Receivables: PO numbers allow quicker invoice processing and payment, reducing wasted time sifting through records.
  5. Accurate Revenue Forecasting: They provide a clear view of pending orders and expected revenue, enabling more accurate cash flow projections.
  6. Customer Relations: By ensuring accurate billing, PO numbers help prevent disputes and maintain healthy customer relationships. It’s a little number that keeps everyone smiling!

Practical Examples and the Structure of PO Numbers

Let’s break down how PO numbers work in real life. Say you’re a business purchasing 500 custom-printed T-shirts. Your PO might look like this: PO2023-06-500T. Here’s how that breaks down:

  • PO: Purchase Order
  • 2023-06: Date of order (Year-Month)
  • 500T: Unique order identifier (Quantity and Product Initials)

Variations of PO Numbers Across Business Industries

While the core purpose of PO numbers remains the same, their format and structure can vary across industries. For instance:

Manufacturing: 

PO numbers may include codes denoting specific product lines or product categories. A company manufacturing electronic goods might use a PO number like PO2023-ELEC-100. Here, ‘ELEC’ signifies the product category (electronics), and ‘100’ denotes the quantity.

  • PO: Purchase Order
  • 2023: Year of order
  • ELEC: Electronics category
  • 100: Quantity of order

Retail: 

PO may incorporate identifiers for the season or product type. A clothing retailer ordering winter clothes in October might use a PO number such as PO2023-WC-OCT-50. ‘WC’ stands for winter clothes, ‘OCT’ for the month, and ’50’ for the quantity.

  • PO: Purchase Order
  • 2023: Year of order
  • WC: Winter Clothes category
  • OCT: Month of order (October)
  • 50: Quantity of order

Service Industries: 

PO numbers might include codes related to the type of service provided. A company ordering IT services might use a PO number like PO2023-IT-JUL. ‘IT’ denotes the service type, and ‘JUL’ indicates the month.

  • PO: Purchase Order
  • 2023: Year of order
  • IT: IT Services
  • JUL: Month of order (July)

How to Create a Purchase Order Number System

While every company might have its nuances, setting up a PO number system involves these steps:

  1. Create a Structure: Decide on a format that fits your needs. It could be numerical, alphabetical, or a combo. Just make sure it’s scalable.
  2. Consider Automation: Tools like ERP or accounting software can automate PO number creation, saving time and reducing errors.
  3. Maintain Consistency: Ensure every PO follows the same format regardless of the method. Consistency is key to easy tracking and management.

To better understand, download our invoice template featuring a PO Number example. This practical reference will be immensely useful as you navigate your early days in accounting!

Best Practices for Setting Up Your Schema: 

When creating your PO number system, remember:

  1. Uniqueness: Each PO number should be unique to avoid confusion.
  2. Meaningfulness: Include information relevant to your business.
  3. Consistency: Maintain a consistent structure for ease of understanding and use.
  4. Automation: Implement a system to generate PO numbers automatically.
  5. Regular Reviews: Make sure your schema continues to serve your business effectively.

Each business can have its unique way of structuring PO numbers. The main point is to make it unique and meaningful for easy tracking and order identification. You can easily incorporate this structure into your PO generation process using an accounting system to automate invoicing, such as Autonomous Receivables.

FAQ

Does an invoice need a PO number?

In B2B transactions, invoices should ideally have a PO number. It helps both parties track the transaction and streamlines the invoicing process.

What is the difference between a PO number and an invoice number?

The buyer issues A PO number when placing an order, while the seller provides an invoice number when requesting payment. They serve as a pair of bookends for a transaction.

What is the difference between PO Invoices and Non-PO Invoices?

PO invoices are tied to a purchase order and are typically used for pre-approved purchases. Non-PO invoices are not linked to a prior purchase order, often used for ad-hoc or unexpected purchases.

Where should I put a purchase order number on an invoice?

A PO number should be prominently placed on an invoice, typically near the top, along with other key information like the invoice number and date.

Where should the purchase order number be placed on an invoice?

The purchase order number should be clearly indicated on the invoice. It is typically placed in a prominent location, such as near the top or in a designated field, to ensure easy identification and reference for both the buyer and the seller. This enables accurate order tracking and reconciliation.

Conclusion

To wrap up, PO numbers are the unsung heroes of effective business management. They streamline processes, prevent disputes, aid in financial management, and play a crucial role in fostering healthy supplier-customer relationships. A robust system to manage them, like Autonomous Receivables, can turn your business into a well-oiled machine.

Before we part ways, here’s a little something. Try Autonomous Receivables, the all-in-one invoicing and payments solution, for free! Start Your Free Trial

In the grand scheme of things, attention to details like PO numbers set successful businesses apart. Keep the questions coming, and remember – every big journey begins with a simple step, or in this case, a simple number!

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