<h1>Customize Order Numbers</h1>
<p>The <strong>Custom Order Number</strong> extension enables you to replace default order numbers with custom order numbers.</p>
<p><span data-preserver-spaces="true">Custom numbers may be more meaningful to your customers or add to your stores’ operational efficiency. The <strong>Custom Order Number</strong> extension also helps you keep business information private. Default order numbers may allow others to estimate your store’s sales volume.</span></p>
<p>Instead of offering just pre-fix and post-fix, the extension enables you to customize your order number by using an open field where you can add text, symbols, and variables. You can use up to eleven different variables to customize the order number. Variables include date, day, year, random number, sequential counter and more.</p>
<p>For example, you can replace the default order number 1343 with something like WOO-09134334 where WOO is the brand name added as text, 09 is the month, 1343 is the default order number and 34 is a 2-digit random number.</p>
<h2><strong>Features</strong></h2>
<ul>
<li>Enable or disable the custom counter at any time</li>
<li>Use the open text field to customize order numbers with variables</li>
<li>Use up to 11 variables to customize order numbers</li>
<li>Variables include a sequential counter, customized start, interval, rest time, and length</li>
</ul>
<p><strong>Customizing order numbers</strong></p>
<p>Using an open field, you can customize order numbers with letters, words, digits, special characters, symbols, and predefined variables.</p>
<p>As soon as you start adding variables, customization options will appear. For example, when you add {counter}, the settings related to counter will appear. You will be able to customize counter start, interval rest and other details.</p>
<p><img class="alignnone size-full wp-image-8572709" src="https://woocommerce.com/wp-content/uploads/2021/09/Custom-Order-Number-Settings-2.png" alt="" width="980" height="460" /></p>
<h2>Order variables</h2>
<p>You can choose from the following 11 variables to customize your store’s order numbers.</p>
<ul>
<li>Random number</li>
<li>Random letter</li>
<li>Random alphanumeric</li>
<li>Counter</li>
<li>Default Order ID</li>
<li>Year</li>
<li>Year short form</li>
<li>Month</li>
<li>Week</li>
<li>Day of the week</li>
<li>Current day</li>
</ul>
<p><img class="alignnone size-full wp-image-8572708" src="https://woocommerce.com/wp-content/uploads/2021/09/Description-Tags.jpg" alt="" width="980" height="882" /></p>
<h3>Requirements</h3>
<p>Minimum PHP version: 5.2</p>
<p> </p>

Custom Order Number

<p>The <strong>Custom Order Number</strong> extension enables you to replace default order numbers with custom order numbers.</p>

<ul class="wccom-tick-list-primary">
<li>Choose from 3 different customizable templates for PDF Invoices</li>
<li>Automatically attach invoices to any email and my-account page</li>
<li>Auto-generate credit notes PDF  for refunded orders</li>
<li>Choose from multiple templates for generating packing slips</li>
<li>Customize Invoice number format using pre-defined variables</li>
<li>Control data to be included PDF invoices, packing slips, and credit notes</li>
<li>Include store and business VAT number in your invoices</li>
<li>Show prices inclusive or exclusive of taxes in invoices</li>
</ul>
<hr />
<p>Enhance your productivity by automatically generating PDF invoices for your orders by using our PDF Invoices & Packing Slip for WooCommerce extension. Additionally, you can also create visually appealing packing slips and credit notes PDFs for refunded orders.</p>
<p>Automatically attach PDF invoices to standard order email or any other email template. Additionally, you can allow your customers to download invoices anytime from my-account page.</p>
<p>The extension comes with multiple templates for PDF invoices, credit notes, and packing slips. You can personalize these templates and control information you may want to include according to your business needs.</p>
<h3><strong>Compatibility:</strong></h3>
<p>WooCommerce PDF Invoice extension by Addify is compatible with the following extensions, enabling you to include customer, product and checkout related data to PDF invoices.</p>
<ul>
<li><a href="https://woocommerce.com/products/custom-user-registration-fields-for-woocommerce/">Custom User Registration Fields</a></li>
<li><a href="https://woocommerce.com/products/checkout-fields-manager/">Checkout Fields Manager</a></li>
<li><a href="https://woocommerce.com/products/product-options-and-fields/">Product Options and Addons</a></li>
<li>Product Add-Ons by WooCommerce</li>
<li>EU VAT Number for WooCommerce</li>
<li><a href="https://woocommerce.com/products/woocommerce-tax-exempt-plugin/">Tax Exempt for WooCommerce</a></li>
</ul>
<h2>PDF Invoices:</h2>
<hr />
<p>With our PDF Invoices & Packing Slip for WooCommerce, you can automatically generate attractive PDF invoices for your orders and share them with your customers.<br />
<img class="alignnone size-full wp-image-18734005221119" alt="" /> <img class="alignnone size-full wp-image-18734005221188" src="https://woocommerce.com/wp-content/uploads/2025/04/PDF-Invoice-sample-1-1.png" alt="" width="980" height="1158" /></p>
<h3><strong>Choose from 3 PDF invoice templates:</strong></h3>
<p>This PDF Invoices for WooCommerce extension comes with 3 in-built minimalistic and professional templates to choose from.</p>
<p><img class="alignnone size-full wp-image-18734005221169" src="https://woocommerce.com/wp-content/uploads/2025/04/PDF-Invoices-template-selection-1.png" alt="" width="980" height="866" /></p>
<h3><strong>Customize PDF invoice data and color scheme:</strong></h3>
<p>You can choose to customize invoice heading, logo, and store address as per your store requirements. You can also choose to hide specific customer and order information from PDF, like order number, invoice date, payment method, customer email, contact no., shipping date, and more. Additionally, you can customize the header color of your PDF invoice to match your store color scheme.</p>
<p><img class="alignnone size-full wp-image-18734005221171" src="https://woocommerce.com/wp-content/uploads/2025/04/Control-PDF-invoice-data-1.png" alt="" width="980" height="800" /></p>
<h3><strong>Customize invoice number:</strong></h3>
<p>Customize your invoice number format to make it meaningful for your business. The extension comes with 5 pre-defined variables to format your invoice number. The same invoice number will be used as PDF file name.</p>
<p><img class="alignnone size-full wp-image-18734005221170" src="https://woocommerce.com/wp-content/uploads/2025/04/PDF-Invoice-number-format-1.png" alt="" width="980" height="310" /></p>
<h3><strong>Add invoice note, terms, and conditions:</strong></h3>
<p>You can add any additional notes or include terms and conditions in your PDF invoices. Additionally, you can include clickable links in the terms and conditions to direct customers to specific URLs.</p>
<p><img class="alignnone size-full wp-image-18734005221172" src="https://woocommerce.com/wp-content/uploads/2025/04/PDF-Invoice-footer-and-terms-1.png" alt="" width="980" height="388" /></p>
<h3><strong>Attach with order emails and my-account page:</strong></h3>
<p>You can choose to enable my-account invoice download option for specific order statuses only. Additionally, you can choose to attach invoice PDFs to multiple emails as per your store needs. This control enables merchants to send invoice PDFs only where needed.</p>
<p><img class="alignnone size-full wp-image-18734005221364" src="https://woocommerce.com/wp-content/uploads/2025/04/Attach-invoice-to-order-emails-1.png" alt="" width="980" height="555" /></p>
<h3><strong>Download PDF from my-account page:</strong></h3>
<p>Your customers can download PDF invoices at any time from my-account page under the orders grid.</p>
<p><img class="alignnone size-full wp-image-18734005221363" src="https://woocommerce.com/wp-content/uploads/2025/04/Download-PDF-invoice-from-my-account-page.png" alt="" width="980" height="437" /></p>
<h2>Packing Slips:</h2>
<hr />
<p>Using our PDF Invoices & Packing Slips for WooCommerce, you can generate packing slips to ensure the correct products are shipped to your customers. Once the order is placed, the store admin can download the packing slip from the admin order detail page.</p>
<p><img class="alignnone size-full wp-image-18734005221405" src="https://woocommerce.com/wp-content/uploads/2025/04/WooCommerce-Packing-Slip.png" alt="" width="980" height="1180" /></p>
<h3><strong>Packing slip templates:</strong></h3>
<p>This extension comes with 3 different packing slip templates to choose from. You can customize logo, titles and other details as per your need.</p>
<p><img class="alignnone size-full wp-image-18734005221656" src="https://woocommerce.com/wp-content/uploads/2025/04/Packing-Slip-templates.png" alt="" width="980" height="1385" /></p>
<h3><strong>Packing slip PDF customization options:</strong></h3>
<p>Depending on your packing requirements, you can customize the information that needs to be included in packing slips like orderid, payment method, billing address, product prices, notes, footer content, and more. Additionally, you can customize the color scheme of headers.</p>
<p><img class="alignnone size-full wp-image-18734005221652" src="https://woocommerce.com/wp-content/uploads/2025/04/WooCommerce-packing-slip-data-control.png" alt="" width="980" height="1092" /></p>
<h2>Credit Notes:</h2>
<hr />
<p>Once the order is refunded, the extension will generate a credit note for the respective order. Its a must-have feature for merchants dealing with B2B customers, as they require a credit note PDF for accounting purposes. The extension by default uses the PDF Invoice template and settings to generate credit notes for refunded orders.</p>
<p><img class="alignnone size-full wp-image-18734005221657" src="https://woocommerce.com/wp-content/uploads/2025/04/Credit-note-using-PDF-settings.png" alt="" width="980" height="549" /></p>
<h3>Credit note PDF customization options:</h3>
<p>You can utilize default PDF invoice template and settings for credit note or choose a custom template and customize it as per your business needs. Just like PDF invoices, you can customize header colors, store details, payment method, shipping and billing addresses, and more. The extension comes with 2 additional themes for credit notes to differentiate it from order invoices if needed.</p>
<p><img class="alignnone size-full wp-image-18734005221650" src="https://woocommerce.com/wp-content/uploads/2025/04/WooCommerce-Credit-Notes-PDF-setttings.png" alt="" width="980" height="2172" /></p>

Addify PDF Invoices & Packing Slips

<p>Automatically generate professional PDF invoices, packing slips, and credit notes. Attach invoices to order emails and customers’ my-account page.</p>

Custom Order Number vs Addify PDF Invoices & Packing Slips