---
title: Reference - Product option properties
---
> Agent instructions:
> **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown.
>
> - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version.
> - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt).
The system offers product options of the following types:
- [Attribute](#referenceproductoptionproperties-a7)
- [Products](#referenceproductoptionproperties-a8)
- [Text](#referenceproductoptionproperties-a9)
** Attribute** – such product options represent attributes of the main product. For example, its different colors, sizes, etc.
| Option name | The name of the product option that is displayed to your customers on the live site and to the users in the administration interface. |
| ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Price adjustment | Specify the price adjustment for the product option, e.g. _+ 9.99_ USD. The + and - characters indicate if the adjustment represents an additional charge to the price or a price reduction.
Depending on the configuration of the site's **Prices include tax** [setting](https://docs.kentico.com/13/configuring-xperience/managing-sites/configuring-settings-for-sites/settings-e-commerce.md), enter the adjustment value with or without tax included.**Info:** Unlike product price, attribute product option price can have a negative value. This is because this price is an amount that is either added to or subtracted from the price of the main product. |
| Allow for sale | Specify if the product option should be allowed for sale in your on-line store, i.e., whether store administrators can offer it together with selected products. |
** Products** – such product options represent separate products. This means that for these options you can define product-related properties (SKU number, Manufacturer, etc.) and keep corresponding stock records.
The system offers **Standard product**, [E-product](#referenceproductoptionproperties-a11) and [Membership](#referenceproductoptionproperties-a10) product representations as product options. The Standard product properties are shared while E-products and Memberships have also their special properties.
- **Standard product** – standard products typically represent product articles and services. The system offers the following properties for all product representations:
| General | |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Product name | The name of the product (product option) that is displayed to your customers on the live site and to the users in the administration interface. |
| SKU | Specify the SKU number (serial number or product number). You can use this number, for example, in your accounting records. |
| Price | Specify the price adjustment for the product (product option) in the [main currency](https://docs.kentico.com/13/e-commerce-features/configuring-on-line-stores/configuring-currencies.md), e.g., _9.99_ USD.
Depending on the configuration of the site's **Prices include tax** [setting](https://docs.kentico.com/13/configuring-xperience/managing-sites/configuring-settings-for-sites/settings-e-commerce.md), enter the value with or without tax included. |
| Department | Specify a department for the product (product option).
You can add a new department directly, without the need to navigate to the dedicated [Departments](https://docs.kentico.com/13/e-commerce-features/managing-on-line-stores/products/categorizing-products/departments.md) section:
Click **New**.
Enter the department properties as required.
Click **Save & Close**.
Now you can use the department for this product (product option), same as for any other product that you offer in your on-line store. |
| Tax class | Here you can specify which [tax](https://docs.kentico.com/13/e-commerce-features/configuring-on-line-stores/configuring-taxes.md) applies to the product. |
| Supplier | Specify the supplier of the product (product option).
You can add a new supplier directly, without the need to navigate to the dedicated [Suppliers](https://docs.kentico.com/13/e-commerce-features/managing-on-line-stores/products/managing-suppliers.md) application:
Click **New**.
Enter the supplier properties as required.
Click **Save & Close**.
Now you can use the supplier for this product (product option), same as for any other product that you offer in your on-line store. |
| Representing | Specify a representation of the product (product option). You can choose from three different representations:
The system offers as product options a standard product representation, i.e., **Standard product**, and two specialized types derived from this general type, i.e., **Membership** and **E-product**. |
| Custom properties | |
| In this category you can edit product's (product option's) [custom properties](https://docs.kentico.com/13/e-commerce-features/customizing-on-line-stores/product-related-customizing/customizing-product-option-forms.md) that you added in **Modules -> Edit () _E-commerce_ -> Classes -> Edit () _SKU_ -> Fields**.**Info:** If there is no such custom property defined in the system, the category is unavailable. | |
| Status | |
| Allow for sale | Indicates if the product (product option) is allowed for sale in your on-line store, i.e., whether your store administrators can offer it together with selected products. |
| Shipping | |
| Needs shipping | Indicates if the product (product option) requires shipping from your on-line store warehouse to an address specified by the customer.
Memberships and e-products don't require shipping. |
| Package weight | Specify package weight in [units set for your online store](https://docs.kentico.com/13/configuring-xperience/managing-sites/configuring-settings-for-sites/settings-e-commerce.md). |
| Package height | Specify package height in units of your choice. |
| Package width | Specify package width in units of your choice. |
| Package depth | Specify package depth in units of your choice. |
| Inventory | |
| Track inventory | Determine whether the system should track the product (product option) inventory.
If so, the system can offer the users inventory-related information such as the number of available product (product option) items or quantity at which the product (product option) needs to be reordered. You can also specify whether your customers can purchase the product (product option) only if it is available in stock. |
| Sell only if items available | Indicates if your customers cannot order more units than the quantity of the product (product option) that is in stock. If you wish to use this property, the **Track inventory** property must be allowed. |
| Available items | Indicates the number of product (product option) items available in stock. If you wish to use this property, the **Track inventory** property must be allowed. |
| Reorder at | Indicates at which quantity on-line store administrators should reorder the product (product option).
Available only if the **Track inventory** property is allowed.
The system informs you about products (product options) that you should reorder in the Inventory [report](https://docs.kentico.com/13/e-commerce-features/managing-on-line-stores/store-reports.md) (in **Store reports -> Products -> Inventory**). You can also configure the **Products widget** (in **Store overview**) to display this information. |
| Min items in one order | Specify the minimum number of product (product option) items in one order. |
| Max items in one order | Specify the maximum number of product (product option) items in one order. |
- ** Membership** – such product options are sets of [roles](https://docs.kentico.com/13/managing-users/role-management.md). You can use memberships to allow the customers access to paid premium content and other restricted website sections or to allow them to perform actions that are not available for ordinary website users.
| Membership | |
| ------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Membership group | [Membership](https://docs.kentico.com/13/managing-users/membership-management.md) defined in the _Membership_ application. Your customers get this membership if they purchase the product (product option). |
| Membership validity | Indicates how long the membership is valid after the purchase.
You can set the validity either for a limited period (_Days_, _Weeks_, _Months_, _Years_, _Until_ a given date) or for an unlimited period. To set membership validity for an unlimited period of time, choose _Until_ and leave the text box below empty. |
- ** E-product** – e-products are electronic files that your customers can download after the purchase.
| E-product | |
| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Files validity | Indicates how long your customers can download the files after the purchase.
You can set the validity either for a limited period (_Days_, _Weeks_, _Months_, _Years_, _Until_ a given date) or for an unlimited period. To set e-product validity for an unlimited period of time, choose _Until_ and leave the text box below empty. |
| Files | Here you can upload files that will make up the e-product.
After uploading a file (by clicking **New attachment** and opening the required file), the system displays the name and size of the file, and allows you to perform the following actions:
**Edit** () – if the file is an image, clicking the icon opens the image in the built-in image editor; see [Editing images](https://docs.kentico.com/13/managing-website-content/working-with-files/editing-images.md). If the file is not an image, clicking the icon opens the file in the built-in metadata editor; see [Editing file metadata](https://docs.kentico.com/13/configuring-xperience/managing-files/editing-file-metadata.md).
**Delete** () – removes the attached file from the e-product.
**Other actions** (**...**) – allows you to **Clone** the attached file.
**Update** () – allows you to replace the attached file with a different file.**Note:** You can upload only files with allowed extensions, as defined in the **Upload extensions** property in **Settings -> System -> Files -> Security**. |
** Text** – such product options represent inscriptions, labels, etc. For example, inscriptions in books, labels on cell phone covers, etc.
| Option name | The name of the product option that is displayed to your customers on the live site and to the users in the administration interface. |
| ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Price adjustment | Specify the price adjustment for the product option, e.g. _+ 9.99_ USD. The + and - characters indicate if the adjustment represents is an additional charge to the price or a price reduction.
Depending on the configuration of the site's **Prices include tax** [setting](https://docs.kentico.com/13/configuring-xperience/managing-sites/configuring-settings-for-sites/settings-e-commerce.md), enter the adjustment value with or without tax included.**Info:** Unlike product price, text product option price can have a negative value. This is because this price is an amount that is either added to or subtracted from the price of the main product. |