---
title: "How to Install Quantity Manager: Min, Max and Step Quantities for WooCommerce"
description: Install the Quantity Manager for WooCommerce to set minimum, maximum and step quantities, then open its settings.
url: "https://wpfactory.com/docs/install-min-max-quantity/"
updated: "2026-09-26"
category: Getting Started
tags:
  - Min Max Default Quantity for WooCommerce
---

# How to Install Quantity Manager: Min, Max and Step Quantities for WooCommerce

To install [Min Max Step Quantity Limits Manager for WooCommerce](https://wpfactory.com/item/product-quantity-for-woocommerce/), add the free version from **Plugins > Add New**, or upload the Pro ZIP after deactivating the free one. Once active, the settings are at **WPFactory > Quantity Manager**, where you switch on the minimum, maximum, step and default quantity sections you need.

[![Quantity Manager plugin in the WordPress plugin directory](https://wpfactory.com/wp-content/uploads/order-min-max-installation-1024x467.png)](https://wpfactory.com/wp-content/uploads/order-min-max-installation.png)

## Before you begin

- WooCommerce installed and active. Quantity Manager declares WooCommerce as a required plugin.
- WordPress 6.1 or later.

## Install the free version

1. In your WordPress dashboard, go to **Plugins > Add New**.
2. Search for **Min Max Step Quantity Limits Manager for WooCommerce** (author: WPFactory).
3. Click **Install Now**, then **Activate**.

## Install Quantity Manager Pro

1. Download the Pro ZIP from your WPFactory account.
2. If the free version is active, deactivate it first under **Plugins**. Pro refuses to activate while the free plugin is running and shows "You need to deactivate Product Quantity Control for WooCommerce."
3. Go to **Plugins > Add New > Upload Plugin**, choose the ZIP, click **Install Now**, then **Activate**.
4. Enter your license key under **WPFactory > Key Manager** so you receive updates.

## Open the settings

After activation, the settings live at **WPFactory > Quantity Manager** (also reachable at **WooCommerce > Settings > Product Quantity**). The plugin itself is enabled by default, but each rule section starts switched off, so nothing changes in your store until you enable one. The sections are:

| Section | What it controls |
| --- | --- |
| General | Decimal quantities, sold individually, add to cart validation, cart notices, initial quantity on page load, Buy all stock button |
| Minimum Quantity / Maximum Quantity | Smallest and largest amounts, per item or for the whole cart |
| Default Quantity | The quantity pre-filled when a page loads |
| Quantity Step | Selling in multiples, for example packs of 6 |
| Fixed Quantity | Allowed or disallowed quantity lists |
| Quantity Dropdown | A dropdown instead of the number box |
| Total Price by Quantity / Price Unit | Price text that updates with quantity, and labels such as "per kg" |
| Quantity Info | Text showing the rules on product and shop pages |
| Styling / Admin / Advanced | Input CSS, product list columns, rounding, roles and compatibility options |

## Quick first setup

1. Open **Minimum Quantity**, tick **Enable Minimum quantity section**, set **All products** to your minimum and save.
2. To pre-fill a quantity, enable **Default Quantity** and set **General > Initial Quantity Options > Single product page** to **Default quantity**. See [How to set a default quantity on page load](https://wpfactory.com/docs/default-quantity-onload/).
3. For per-product values, tick **Per product** in the section, then set the number in the **Product Quantity** box on the product edit page.
4. Open a product page and try a quantity outside your rule to check the result.

## Pro version features

The free version already includes store-wide rules plus per-product minimum, maximum and step. Quantity Manager Pro adds, among other things:

- Per-product default and fixed quantities, and minimum, maximum, step and default quantities by category or attribute.
- A quantity box, dropdown and price on shop and category pages.
- Selling below the minimum when stock is low, role targeting, and disabling the plugin by URL or category.

## If it does not work

- **Pro will not activate:** the free version is still active. Deactivate it, then activate Pro.
- **No Quantity Manager menu:** WooCommerce is not active.
- **Nothing changed on the store:** expected until you enable a section and set a value.

## FAQ

### Do I need the free version to run Pro?

No. Pro is a standalone plugin and must replace the free version, not run beside it.

### Where do I find a feature comparison?

See [Quantity Manager: Free vs Pro features](https://wpfactory.com/docs/free-vs-pro-features/).

### Why is a Per product or Per Category checkbox greyed out?

Greyed-out options are Pro. They become available once Pro is active.

### Get started with Pro

Ready for finer control? [Get Quantity Manager Pro](https://wpfactory.com/item/product-quantity-for-woocommerce/) to unlock per-category and per-attribute rules.

Need a hand? Our team answers every ticket on the [Quantity Manager support forum](https://wpfactory.com/support/item/product-quantity-for-woocommerce/).

Related articles

- [Variation-Specific Min/Max/Step Settings Not Applied](https://wpfactory.com/docs/variation-min-max-step-issue/)
- [How to Sell Products in Multiples with a Quantity Step](https://wpfactory.com/docs/woocommerce-quantity-step-increment/)
- [Quantity Manager: How to Reset a Settings Section](https://wpfactory.com/docs/quantity-manager-reset-settings-section/)
- [Quantity Manager: Message Placeholders Reference](https://wpfactory.com/docs/quantity-manager-message-placeholders-reference/)
- [Quantity Manager: Developer Hooks and Filters Reference](https://wpfactory.com/docs/quantity-manager-hooks-filters-reference/)

 

[![Min Max Default Quantity for WooCommerce](https://wpfactory.com/wp-content/uploads/Min-Max-Default-Quantity-for-WooCommerce.webp)](https://wpfactory.com/item/product-quantity-for-woocommerce/)