# Order Reference

## Activating Order Reference

The option to display an order reference on your documents is something that first needs to be activated in BestInvoicing:

1. Navigate to the top right corner of the screen (email address) and select 'Apps and Integrations' in the menu.
2. Check the list of 'All Apps and Integrations'.
3. Click the green button 'Activate' on the line mentioning 'Order Reference'. 

As soon as this application has been activated, it can be used immediately. 

## Mentioning an Order Reference on Documents

Once the field has been activated, it appears at the bottom of the interface window of your documents (invoices, order confirmations, delivery notes, etc.).

![](/files/iPwfKL4J8VhIwQXTKu3J)

The order reference is a free text field for manual entry. The value will be displayed at the top of your document, next to the date, document number, ... 

{% hint style="success" %}
Are you a [PEPPOL user](/more-features/send-documents-via-peppol.md)? Then specifically do use this field. 'Order Reference' is a mandatory field for sending invoices to the government. By entering this in a separate field on BestInvoicing documents, your order reference can be sent in a structured way via PEPPOL.
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://support.onfact.eu/apps-integrations/order-reference.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.