# Installation

## Install FREE version

1. Upload the plugin's files to the `/wp-content/plugins/uni-woo-custom-product-options` directory, or install the plugin through the WordPress plugins screen directly.
2. Activate the plugin through the `Plugins` screen in WordPress
3. Use the `WooCommerce->Uni CPO Settings` screen to configure the plugin
4. You will be asked to opt-in for usage statistics. You can choose either to do opt-in or do not do this. It is up to you. **However, it is essential to opt-in to make your site visible for us, therefore we can help you with licenses etc. You will be sent an email with verification link. Use it to verify your user of the plugin.**
5. You should be able to see the menu like this:

![](/files/-M50Y57gEbw2QZthc9qr)

* Affiliation - it is possible to become an affiliate and earn money for referring new users ;)
* Account - an information about the user and the site; this info is synced with [Freemius](http://freemius.com) - the SaaS service that is used for selling the premium version of the plugin, managing licenses and many more
* Contact Us - a quick form where you can ask as any question related to the plugin
* Support Forum - a link to the plugin's support forum on WP.org.
* Upgrade - use this link if you wish to buy PRO version of the plugin

**Now you can use FREE version of the plugin. Please, proceed reading section** [**Usage**](/uni-cpo-4-documentation/usage.md) **to know what to do next.**

## Upgrade to PRO version

### When you want to buy the plugin

1. Go to Upgrade submenu item and **buy** the plugin. You must be able to see a message like this in your admin area:![](/files/-M50Y57iKw9lJU82Xx4K)
2. Click on **Download the latest Pro version** link and download Pro version of the plugin.
3. **Deactivate Free version and remove it. Install and activate Pro version.**

### When you want to sync your license/activate PRO version subscription and you already have a license key for PRO version

1. Go to `WooCommerce -> UniCPO Settings -> Account` sub menu item and check your current plan.
2. If it says `FREE` - just click on 'Sync License' button next to it. Wait a minute and you should be able to see this message at the top of the page:![](/files/-M50Y57k-8W_00f2j78m)
3. Click on **Download the latest Pro version** link and download Pro version of the plugin
4. ⚠️ **Deactivate Free version and remove it.** *(By NOT deactivating FREE version you will get an error described in FAQ section after activating PRO version!)* ⚠️ 
5. 🏆 **Install and activate Pro version. 🏆 😎**

**Now you can use PRO version of the plugin. Please, proceed reading section** [**Usage**](/uni-cpo-4-documentation/usage.md) **to know what to do next.**


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