## Zoho Billing - Product, solutions, integrations, support, and resources Index

Access the complete documentation index at:
https://www.zoho.com/en-sg/billing/llms.txt

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

# Item Preferences

Let’s have a look at the various settings you can configure for the Items module in Zoho Billing.

To go to Item Preferences:

*   Click the **Gear** icon in the top-right corner of the window to open **Settings**.
*   Select **Preferences**.
*   Select **Items** in the left menu.

Alternatively, if you’re in the **Items** module, you can directly go to Item Preferences by clicking the **Settings** icon in the top-right corner.

![Prefrences in Items](/billing/images/help/images/product-catalog/items-preference.png)

### Set a Decimal Value for Item Quantity

The decimal rate for item quantity comes into play when you are creating transactions (like invoices). By default, this rate is two. You can select any decimal rate of your choice.

### Allow Duplicate Item Names

Enable this option if you want to create multiple items with the same name in Zoho Billing. To enable this option, the SKU [custom field](/en-sg/billing/help/product-catalog/items/preferences.html#custom-fields) should be made Active and Mandatory.

Once this option is enabled, the item’s SKU will be used to uniquely identify the item.

### Custom Fields

Custom Fields are fields that you can manually add to the item creation page to store additional information about the item.

Let’s take a look at how Custom Fields can be helpful with the help of an example.

**Scenario:** David sells beds which are of different sizes to his customers. He wants to store their specifications along with the item. So, David creates a Custom Field to enter the different sizes. The custom field is displayed in the item creation form where David enters the appropriate size and stores the relevant information.

Like David, you might want to create Custom Fields in different circumstances that are unique to your business. By default, there are a few Custom Fields available, like SKU and Item Image, which you can enable if needed.

To create a Custom Field:

*   Go to _Settings_ > _Preferences_ > _Items_.
*   Select the **Field Customization** tab.
*   Click **\+ New Custom Field** in the top-right corner.
*   Enter a **Label Name** for the custom field that you’re creating.
*   Choose if the custom field should be a mandatory field or not.
*   Click **Save**.

Learn more about [Custom Fields](/en-sg/billing/help/settings/preferences/general.html#field-customization).

### Related Lists

You can fetch data from both the Zoho Billing application and third-party services with Related Lists, and view them in the Items module, making it easy to cross-reference information from different sources.

### Custom Buttons And Links

You can create new buttons in the Items module to perform specific actions for your transactions or to open external links. You can create them using deluge script and execute actions based on the functions you add.