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# How to Add Order Identification Details to Invoices

The **Order information** section in the Visual Editor lets you control which order identification details appear on your invoice. You can toggle fields like the order number, invoice number, and PO number — each with a simple checkbox. This lets you tailor your invoices to show exactly the identifying information your customers and accounting team need.

### Open the Order information section

1. Open the **Invoice Falcon** app from your Shopify Admin.
2. Click **Templates** in the left navigation menu.
3. Click on the template you want to customize (or click **Edit** on the template row).
4. Scroll to the **Visual editor** section and click the **Open visual editor** button.
5. In the left panel, click the **Order information** section to expand it.

The section is divided into three sub-sections: **Order identification**, **Order dates**, and **Order details**. This article covers the **Order identification** sub-section.

||| **Note:** For Order dates (order date, issue date, due date, payment terms, date formats) and Order details (order amount, order tags), see their dedicated articles.

![](https://storage.crisp.chat/users/helpdesk/website/-/c/4/f/4/c4f40695834d1000/3_16b51y8.png)

### Order identification details

This sub-section controls which identifying numbers appear on your invoice. Check or uncheck each field as needed, then click **Save changes**.

* **Order number** — displays the Shopify order name (e.g., #1001). This is the order number assigned by Shopify when the order was placed. Off by default.
* **Invoice number** — displays the invoice number generated by Invoice Falcon (e.g., INV-1012). On by default.
* **PO number** — displays the purchase order number if one was provided on the order. Useful for B2B transactions where customers reference a PO number. Off by default.
* **Custom invoice number** — when enabled, uses a custom invoice number (if set) instead of the default Invoice Falcon invoice number. This is useful if you use a separate numbering system. Off by default.

![](https://storage.crisp.chat/users/helpdesk/website/-/c/4/f/4/c4f40695834d1000/4_pik6v1.png)

| **Tip:** For B2B invoices, enable both **Invoice number** and **PO number** so your customers can easily match invoices to their purchase orders.

### Save your changes

After toggling any checkboxes:

1. Review the live preview on the right to confirm the invoice looks correct.
2. Click **Save changes** at the top of the Visual Editor.

||| **Note:** Changes apply only to invoices generated after saving. Previously generated PDFs are not affected.

### Known limitations

* **Custom invoice number requires setup** — the Custom invoice number checkbox only works if you have a custom invoice number configured for the order. If no custom number is set, the standard invoice number is displayed even when the checkbox is enabled.
* **PO number depends on Shopify data** — the PO number only appears if one was entered on the Shopify order. If no PO number exists, nothing is shown even when the checkbox is enabled.
* **Settings are per-template** — order identification settings are saved independently per template. Changing settings on one template does not affect others.

### Troubleshooting

| Symptom | Likely Cause | Fix |
| ---- |
| PO number checkbox is enabled but PO number does not appear | The Shopify order does not have a PO number | Add a PO number to the order in Shopify Admin, then regenerate the invoice |
| Invoice number shows the wrong number | Custom invoice number is enabled but no custom number is set | Uncheck **Custom invoice number** to use the default Invoice Falcon number, or set a custom number for the order |
| Order number not showing | The checkbox is not enabled | Expand the **Order information** section and check **Order number**, then save |

### FAQs

**Q: Can I show both the order number and invoice number at the same time?**
A: Yes. Check both **Order number** and **Invoice number** checkboxes. Both will appear on the invoice.

**Q: What is the difference between invoice number and custom invoice number?**
A: The invoice number is automatically generated by Invoice Falcon. The custom invoice number is a number you assign manually or through a custom numbering system. When **Custom invoice number** is enabled and a custom number exists, it replaces the default invoice number on the invoice.

**Q: Will enabling a field that has no data cause a blank line on the invoice?**
A: No. Fields are only rendered if the data exists. For example, enabling **PO number** on an order without a PO number will not show a blank "PO Number:" line.

**Q: Which fields are enabled by default on a new template?**
A: Only **Invoice number** is enabled by default. Order number, PO number, and Custom invoice number are all off by default.