## Zoho Inventory Documentation Index

Access the complete documentation index at:
https://www.zoho.com/es-mx/inventory/llms.txt

Use this file to discover all available documentation pages before proceeding.

[Back](./)

# How do I add custom fields to my sales orders?

To add custom fields for your sales orders:

*   Click on **Settings** at the top right corner of the page.
*   Go to **Preferences**.
*   Click on sales orders.
*   Go to the Custom Fields tab
*   Here you can add up to 19 custom fields. You can learn more about the custom field limit [here.](/inventory/help/settings/preferences.html#custom-field-limits)
*   You can also have these fields reflected in your PDFs by checking on the box near **Show in PDF** option.