readme.txt

=== WC Serial Numbers - Ultimate License Manager for Selling, Licensing & Securely Delivering Digital Content with WooCommerce ===
Contributors: pluginever, manikmist09
Tags: license manager, license, license number, serial number, activation number, key, serial key, license key, activation key, product key, serial code, license code, activation code, digital, digital downloads, digital product key, digital license, product license, software license, software license key, software activation, license key for digital products, digital product license, virtual product key, virtual product license, subscription product license, license key generator, woocommerce
Requires at least: 5.0
Tested up to: 6.5
Requires PHP: 5.6
Stable tag: 1.7.5
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html

The easiest way to sell digital products and manage licenses with WooCommerce.

== Description ==

= Ultimate Solution for Selling Digital Products and Content with WooCommerce =
**[WC Serial Numbers](https://pluginever.com/plugins/woocommerce-serial-numbers-pro/?utm_source=product-page-wordpress.org&utm_medium=product-page-wordpress.org&utm_campaign=product-page-wordpress.org)** is the most powerful WordPress license manager plugin created for WooCommerce store owners. Sell keys, manage licenses, assign serial keys to products, and keep track of customer activations, all without leaving the WooCommerce dashboard.

WooCommerce is the best eCommerce platform out there, but lacks key features for selling digital products. WC Serial Numbers plugin bridges this gap by seamlessly integrating all the necessary functionalities. Transform your WooCommerce store into a complete digital marketplace by incorporating license management, secured and authorized distribution.

=== 👨‍💻 This Plugin is Ideal for: ===

* Content Creators
* Developers and Digital Agencies
* Event Organizers
* License Key/Product Key Resellers
* Any Kind of Digital Product Sellers

=== 💵 With WC Serial Numbers You Can Sell: ===

* Digital Assets (Themes, Plugins, Digital Arts, Photos, Videos, Music, NFTs, Templates)
* Digital Tools (Software, Apps, Games, Mockup)
* Digital Entries (Event Tickets, Entry Pass for Conferences, or Workshops)
* Digital Gifts (Gift Cards, Lottery, and Secret Number-based Products)
* Custom Activation Codes, License Keys, Secret Codes, Usernames & Passwords
* Online Courses & Professional Services (Tutorials, Coaching, Consultations)
* eBooks and Audiobooks
* And many more.

Despite being the ultimate license manager for WooCommerce, Serial Numbers is versatile when it comes to use cases. For authenticating your physical products, private label them, or stop the spread of counterfeits, you can apply this technology to any tangible products.

[**💻 Live Demo Site**](https://demo.pluginever.com/serial-numbers) | [**📄 Plugin Documentation**](https://pluginever.com/docs/woocommerce-serial-numbers)

=== ✨ How You can benefit from using WC Serial Numbers for your businesses: ===

- **Generate Fast Revenue:** Stop worrying about the licensing management system and put all of your energy into creating and improving your products.

- **Self-Hosted, No Platform Fees:** This allows you comprehensive control over the selling process. You are not required to pay a percentage of your earnings to the platform regardless of how many digital products you sell.

- **Streamlined Order Fulfilment:** Automate the delivery process by generating and sending keys to customers after successful payment. This eliminates the need for manual intervention, saves time, and reduces errors.

- **Customizable and Scalable:** Customize the format and appearance of keys to align with your brand. Additionally, the plugin is scalable and can handle a large volume of orders, ensuring smooth operations even during peak periods.

- **Increased Customer Satisfaction:** Instant delivery of keys after purchase enhances the customer experience. Customers can immediately access and activate their products, resulting in higher satisfaction and reduced support requests.

- **Prevent Counterfeiting and Piracy:** The plugin is capable of avoiding piracy and fraud. It's a safety net since WooCommerce store owners can verify the product is authentic and hasn't been tampered with. Those who have bought a product online can check to see if it is a legitimate copy or a fake.



=== ✨ WC Serial Numbers Features: ===

- **Add Keys Manually:** You can manually enter as many keys as you wish, or you can use our powerful built-in bulk importer to do the work for you.

- **Deliver Keys Automatically:** You have the option to auto-complete any order to send and show keys to your customer’s order details page after successful payment. This ensures a seamless and hassle-free purchase experience for your customers.

- **Detailed Reporting:** The plugin provides comprehensive reporting and logging features, allowing you to track the usage and activation of the keys. This helps you monitor and analyze the performance of your products.

- **Self-service:** Customers can manage their license keys and downloads for all of their associated orders at any time by logging into their accounts on the "My Account" page of your store.

- **License Key Encryption:** To guarantee your security, the keys kept in the database are encrypted. With this plugin, you may avoid headaches and second thoughts by knowing that your license keys are secure.

- **Key Generator (PRO):** You can control how your keys will be generated. Using the built-in license generator, you can customize your key interface rule to generate keys. The generator will allow you to generate both sequential and random keys.

- **Automatically Generate Keys (PRO):** You can use the automatic key generation rule for a license-enabled product, our plugin will automatically generate and deliver a key to the customers whenever they purchase that product.

- **Flexible Activation Options:** You can choose to require customers to activate their keys before accessing or using your digital products. This allows you to control access and prevent unauthorized usage.

- **API Form for Validation, Activation, Deactivation:** Serial Numbers includes a built-in license key validator API form to validate, activate and deactivate keys without any complexity. You can also show an API form for your customers anywhere on your website using our predefined shortcode for the form.
You can also use different methods that allow you to validate, activate, and deactivate license keys as well as access the software's current version number using HTTP requests.

- **Reuse Keys:** When a sold key is refunded or an order fails, activating this option allows you to reuse the refunded or failed keys. You don't have to be concerned about which keys are refunded or failed.

- **Revoke Keys:** When an order is canceled or reimbursed, the key can be revoked. The key will be invalidated if the order is canceled or refunded.

- **Simple Product Support:** Create and assign keys for simple products. You can sell keys for any of your products that fall into the group of "simple products.”

- **Variable Product Support (PRO):** This functionality allows you to generate and assign keys for product variations of your variable products. As a result, it avoids the issue of selling license-enabled variable products.

- **Backorder Support (PRO):** You can sell keys even when the product is out of stock, and you can assign keys to orders with a single click when they become available.

- **Support for Expiry Dates:** For products that require time-limited access or subscription-based licensing, this plugin allows you to set expiry dates for keys. This ensures that customers cannot use the keys beyond the specified period.

- **Bulk Import (PRO):** You may use our bulk import license for product update the serial key table with pre-existing or new keys. The bulk importer accepts CSV and TXT files. CSV importer works when you import several items at once, whereas TXT works when you import a single product with many product keys.

- **Bulk Export (PRO):**You can export specific orders by entering Order IDs. You will be able to export keys from products based on their status, such as **Available, Sold, Refunded**, etc. You will also have options to export from fields such as product ID, and activation limit.

- **Keys For Older Orders:** Keys can be added to previous orders by simply assigning them, and activation settings can be applied if necessary. This will assist in delivering instant updates to existing customers.

- **Assign Keys Manually (PRO):** You can stop assigning keys automatically with the orders and you can assign them manually. This way you can control the key delivery system on your own when you'll have to assign it manually.

- **Automated Email Delivery:** You can automatically send an email containing the assigned key to the customer after a successful purchase. This eliminates the need for manual key distribution and ensures a smooth customer experience.

- **Twilio SMS (PRO):** Your keys can be automatically sent to your customers via SMS, courtesy of the amazing Twilio API. No more dependency on emails and no more delayed responses! Your customers will receive instant notifications with their product keys as soon as they make a purchase.

- **Allow Duplicate Keys (PRO):** You can add and sell duplicate keys depending on your use case. This will allow you to sell the same keys with different orders from the key database.

- **Translation (PRO):** You can translate the notification texts and warning labels as you wish. This gives you the freedom to communicate and guide your customers to proceed with operating their orders in your direction.

- **License Key Stock Notification:** You can enable this option to receive an email notification when your stock is about to expire. You must configure your stock limit so that you receive notifications anytime a product drops below that quantity.

- **Order Table Key Properties (PRO):** When an order is completed, your customer will receive a key both on the order page and via mail. The order details page and email both include a table with the keys and other required data. You can decide which key fields to display and you can edit each field from the order table settings menu.

- **Powered by WooCommerce:** Enjoy the power of WooCommerce to use any payment gateway and manage orders natively. There's no need for third-party plugins, making it a seamless addition to your WooCommerce ecosystem.

- **Useful Integrations:** Enjoy compatibility with popular plugins like WPML for multilingual support, PDF Invoice & Packing Slips for easy documentation, and multivendor sites. This plugin is designed to integrate smoothly with a wide variety of tools and platforms to enhance your store experience.

> Maximize the potential of WC Serial Numbers plugin by unlocking all its advanced features. <a href="https://pluginever.com/plugins/woocommerce-serial-numbers-pro">Get The PRO Version.</a></pre>


=== ⚡ More Upcoming Features: ===

We are constantly improving our plugin and bringing new enhancements for your connivance. We’re currently working on some exclusive features and will release them periodically. Have a look at what’s in our pipeline.

- **Subscription Support:** You’ll have the option to sell your subscription products with the WooCommerce subscription feature. It will give you all the features and functionalities to sell keys by managing subscriptions efficiently.

- **Rest API:** You’ll be able to operate a set of standard rules and conventions for communicating with other web-based applications and services. REST API treats everything as a resource, including a WooCommerce product. License keys are managed as resources and are accessed through endpoints that are also resources.

- **Fast Checkout:** You’ll have the option to let your customers go through a fast checkout process if they only add digital products to their cart. With this option, customers won't have to worry about filling out fields they don't need to.

- **Custom Emails:** You’ll have the full option to take control over sending emails to your customers. You’ll have options to disable sending emails and also you can send custom emails instead of sending default emails sent via WooCommerce itself.

- **Key Placements:** You’ll have the option to display keys for your customers depending on your preferences. On that note, you don’t have to stick with the default key placements by the plugin. You can also choose file formats for showing your keys.

- **Barcode Integration:** You’ll have the option to create fully functional barcodes as you know that a barcode is a visual representation of the ‘serial number’ that is located beneath it. You can input product-related data or information using available formats of barcodes.


== 💚 Why Creators and Digital Product Sellers Love WC Serial Numbers: ==

- **Unparalleled Features:** Serial Numbers plugin is second to none when it comes to generating serial numbers and managing licenses for your WooCommerce products. This license manager plugin is a powerhouse on its own, with features like auto-generating unique keys, integration with the REST API, and so on.

- **Regular Updates:** The plugin is constantly being improved, and we make those improvements available to our customers at no extra cost. We release updates to ensure compatibility with WooCommerce as well as the latest version of PHP.

- **Fast and Friendly Support:** The constant availability of our help desk and positive feedback on the reviews page for the plugin says a lot. We’re constantly working on new innovative features to give you more power. Whether you have a question or want to request a new feature, we’re just a quick message away.
	- [Free support (forum)](https://wordpress.org/support/plugin/wc-serial-numbers/)
	- [Premium & pre-sales support (email)](https://pluginever.com/support/)

=== 💝 User Reviews and Testimonials: ===

WC Serial Numbers is helping tens of thousands of store owners sell and manage keys and they just love it! See all the 5-star reviews from our users [here](https://wordpress.org/support/plugin/wc-serial-numbers/reviews/?filter=5).

=== 💢 Supercharge Your Store with Our Other WooCommerce Plugins: ===

- **[Min Max Quantities for WooCommerce](https://wordpress.org/plugins/wc-min-max-quantities "Min Max Quantities for WooCommerce")**
- **[Product Category Slider for WooCommerce](https://wordpress.org/plugins/woo-category-slider-by-pluginever "Product Category Slider for WooCommerce")**
- **[Product Category Showcase for WooCommerce](https://wordpress.org/plugins/wc-category-showcase "Product Category Showcase for WooCommerce")**
- **[Product Variation Swatches for WooCommerce](https://wordpress.org/plugins/wc-variation-swatches "Product Variation Swatches for WooCommerce")**

Visit [PluginEver](https://pluginever.com) to learn from our WooCommerce tutorials and find out about other [WooCommerce plugins](https://pluginever.com/plugins).

== Installation ==

= Minimum requirements =

* WordPress 5.0 or greater
* WooCommerce 5.0 or greater
* PHP version 5.6 or greater
* MySQL version 5.6 or greater
* MariaDB version 10 or later

= Automatic installation =

Automatic installation is the easiest option as WordPress handles the file transfers itself and you don't need to leave your web browser. To do an automatic install of Serial Numbers, log in to your WordPress dashboard, navigate to the Plugins menu, and click "Add New".

In the search field type "Serial Numbers" and click Search Plugins. Once you have found the plugin you can view details about it such as the point release, rating, and description. Most importantly, of course, you can install it by simply clicking "Install Now".

= Manual installation =

1. Upload the plugin files to the `/wp-content/plugins/wc-serial-numbers` directory, or install the plugin through the WordPress plugins screen directly.
1. Activate the plugin through the 'Plugins' screen in WordPress

= Updating =

Automatic updates should work like a charm; as always though, ensure you backup your site just in case.

== Frequently Asked Questions ==

= What is the difference between Serial Numbers and License Keys? =

Serial Numbers can be used as product labels or product identifiers. It helps to prevent product theft and ensures complete control over your products. License Keys can be used for digital products and software activation purposes. It grants access to authorized users and makes products usable. You can even set the validity date for limit usage and set the activation limit.

= Do I need any coding skills to operate this plugin? =

No, you don’t need any coding or programming skills to manage the plugin. It's made to be simple and effective for your use.

= What file types I can sell? =

Well, there is no restrictions, and any file type can be sold with this plugin. You can sell .PDF,.DOC,.MP3,.MOV,.EPUB,.PSD,.MP4,.JPG, and any other extension that exists are supported.

= How the keys are delivered? =

The keys are primarily delivered to the order details page of the customer's account and to their emails. Also, you can deliver keys through SMS directly to your customer's phone numbers through the [Twilio SMS](https://pluginever.com/docs/wocommerce-serial-numbers/sms-integration-with-woocommerce-serial-numbers-pro/) feature.

= Where can customers see their purchase history? =

Your customers can see their purchase history within the my account section’s “Orders” menu. You can also show your users the order details and license keys available for both activation and download.

= Can I import my own custom keys? =

Yes, with this plugin you can sell your own custom keys and you can also bulk import your custom keys via CSV and TXT file format.

= Can I use this plugin to provide a licensing system for my own software? =

Yes, this plugin comes with HTTP based API integration and also has REST API functionality. You can easily integrate the license validation function in any of your software. Our plugin has a dedicated page for Software API. You can learn more from our [documentation](https://pluginever.com/docs/wocommerce-serial-numbers/woocommerce-serial-numbers-api-docs/) about how it works.

= Does this plugin works with variable products? =

Yes, the plugin supports variable products. You can add keys to each and every specific variation of a product.

= Can I customize emails? =

Yes, check out the [helpful guide](https://pluginever.com/docs/wocommerce-serial-numbers/) that we've put up on how to personalize emails.

= What payment processors are supported? =

WC Serial Numbers is powered by WooCommerce and it supports all the payment processors/gateways available within WooCommerce like Stripe, PayPal, Square, etc.

= Does this plugin supports subscription/recurring payments? =

Yes, with [WooCommerce subscription](https://woocommerce.com/products/woocommerce-subscriptions/) feature, you can create subscriptions so that customers continue paying you over time. This is great for selling memberships, courses, access passes, software licenses, and other products which require ongoing payments.

= Is this plugin translatable? =

Yes, all the strings in this plugin can be translated and over time we hope to offer many translations out of the box.

= How do I upgrade to the Pro version to get access to the advanced features? =

You can purchase the premium version of the plugin from our [website](https://pluginever.com/plugins/woocommerce-serial-numbers-pro/).

= Can I request/suggest a new feature? =

Yes, you are always welcome to [provide suggestions](https://github.com/pluginever/wc-serial-numbers/issues) for new features and enhancements.

== Screenshots ==
1. Serial Keys List
2. Add New Key
3. Validation Form
4. Activation Log
5. Reports Page
6. Settings Page
7. Product Page Options
8. Order Complete Email with Keys
9. Thank You Page with Keys

== Changelog ==
= 1.7.4 (01 Jul 2024) =
Enhance: Enhanced security to handle form actions.
Enhance: Enhanced security to handle Ajax search.
Fix: Few known issues fixed.

= 1.7.4 (11 Jun 2024) =
Fix: Vulnerability issue.
Fix: Shortcode permission issue.

= 1.7.3 (12 May 2024) =
Enhance: Move query arg based API to REST API
Fix: Few known issues fixed.

= 1.7.2 (19 Apr 2024) =
* Fix: Text domain issue fixed.

= 1.7.1 (15 Mar 2024) =
* Fix: Few known issues fixed.

= 1.7.0 (7 Mar 2024) =
* Fix: Few known issues fixed.

= 1.6.9 (28 Feb 2024) =
* Fix: The keys column is missing on the order table.
* Fix: Add serial keys, Remove serial keys actions missing on the order table.

= 1.6.8 (18 Feb 2024) =
* Fix: Compatibility with WooCommerce 8.6

= 1.6.7 (23 Jan 2024) =
* Fix: Compatibility with WooCommerce 8.5

= 1.6.6 (13 Nov 2023) =
* Fix: Compatibility with WordPress 6.4

= 1.6.5 (25 Oct 2023) =
* Fix: API request is not working.

= 1.6.4 (25 Oct 2023) =
* Enhance: Optimize and improve code for better performance & security.

= 1.6.3 (8 Oct 2023) =
* Fix: Dropdown active color is not working.
* Enhance: Allow keys to be sold without checking key source.

= 1.6.2 (27 Sep 2023) =
* Enhance: Add compatibility with WooCommerce HPOS.

= 1.6.1 (11 Sep 2023) =
* Fix: Conflict PHP Autoloader with other plugins.

= 1.6.0 (28 Aug 2023) =
* Fix: Product dropdown showing HTML tags.
* Fix: Fix typo.
* Enhance: Improve `wc_serial_numbers_allow_backorder` filter.

= 1.5.9 (16 Aug 2023) =
* Fix: Email validation is not working when email contains uppercase letters.
* Fix: Reset activations showing wrong activation count.

= 1.5.8 (10 Aug 2023) =
* Fix: Reset activation is not showing correct activation count.
* Fix: API email validation ignore the email case sensitivity.

= 1.5.7 (2 Aug 2023) =
* Fix: Keys page showing blank page.

= 1.5.6 (2 Aug 2023) =
* Enhance: Key edit page UI improvement.
* Fix: Search by order ID not working in the serial numbers list page.

= 1.5.4 (18 Jun 2023) =
* Enhance: Labels and notice texts.
* Fix: Sequential pointers with manual assigning not working properly.
* Fix: Reports filter not working.

= 1.5.3 (14 Jun 2023) =
* Enhance: Added bulk reset action for serial keys.
* Enhance: Added product ID and Sold count in the stock report.
* Fix: API response is not showing activations.

= 1.5.2 (24 May 2023) =
* Fix : Key properties is not sorting properly.
* Fix : Optimized the code for better performance.

= 1.5.1 (11 April 2023) =
* Fix : Admin order details showing only 20 serial keys when bought more than 20 serial keys.
* Fix : When order status is changed from 'completed' to 'on-hold' to 'completed' serial keys added twice.

= 1.5.0 (9 April 2023) =
* Fix : Serial keys list table not working when filter by status.
* Fix : Stock report product link not working when variable product.

= 1.4.9 (8 April 2023) =
* Fix : Serial keys list table not showing pagination when status is sold.
* Enhance: Enhance the UI of sold serial keys in the order details page and order complete email.

= 1.4.8 (6 April 2023) =
* Fix : Only 20 records are showing when bought more than 20 serial keys.
* Fix : Serial keys assigned only for first 2 products when bought more than 2 products.
* Fix : Action 'Edit' is not working for variable products on Report menu.
* Enhance: Add search option for serial number in the stock report table.
* Enhance: Fix duplicate key issue when importing.
* Enhance: UI improvements.

= 1.4.7 (3 April 2023) =
* Fix : Search key by customer name is not working.
* Fix : Stock report is showing only 20 records.
* Enhance: Order table add bulk action to add/remove serial keys.
* Enhance : Add product filter in the stock report table.

= 1.4.6 (1 April 2023) =
* Enhance: Enhanced API implementation.
* Enhance: Update Serial Number statues.
* Enhance: Add shortcodes for serial number verification and activation/deactivation.
* Enhance: Add admin tools to verify and activate/deactivate serial numbers.
* Enhance: Add plugin status page.
* Enhance: Admin support clicking to copy serial number.
* Enhance: UI improvements.
* Deprecated: Duplicate serial number feature removed.
* Fix: Few known issues fixed.

= 1.4.5 (30 January 2023) =
* Fix: Few known issues fixed.
* Enhance: Framework updated.

= 1.4.4 (16 January 2023) =
* Fix: Product select dropdown not working for non english languages.
* Fix: Product select dropdown search limit increased to 100.

= 1.4.3 (15 January 2023) =
* Fix: Translation breaking page
* Fix: Reuse license key not working

= 1.4.2 (15 January 2023 )=
* Enhancement: New settings UI with performance improvements.
* Enhancement: Optimized plugin assets.

= 1.2.10 (20 May, 2022) =
Fix - Compatibility with WP 6.1
Fix - Compatibility with WC 71.

= 1.2.10 (17 May, 2022) =
Fix - Compatibility with WC v6.5.1
Fix - Fix typo
Enhance - Enhance simple product metabox styles

= 1.2.9 (19 December, 2021) =
* Fix - Compatibility with WP v5.8.2
* Fix - Compatibility with WC v6.0.0

= 1.2.8 (27 May, 2021) =
* Fix - Compatibility with WP v5.7.2
* Fix - Compatibility with WC v5.3.0

= 1.2.7 (8 September, 2020) =
* Fix - Shop manager User level: Search products do not show and decrypting key failed
* Fix - Notification email conflict
* Fix - Stock notification need to skip private products
* Fix - Activation list table serial number column is not working

= 1.2.6 (24 August, 2020) =
* Fix - Unicode character not showing on PDF
* Fix - Translate path not found
* Enhance - Ordered serial numbers in dedicated metabox on order edit page

= 1.2.5 (12 August, 2020) =
* Fix - Error on order edit page when contains non serial numbers

= 1.2.4 (9 August, 2020) =
* Fix - Serial numbers are not showing in order edit page

= 1.2.3 (3 August, 2020) =
* Fix - Order status changed on pending status
* Fix - Order edit throwing error not found order_id

= 1.2.2 (28 July, 2020) =
* Fix - Can't add manually order

= 1.2.1 (25 July, 2020) =
* Fix - Order email showing wrong when order contains non serial items
* Fix - Can not add manual serial numbers

= 1.2.0 (23 July, 2020) =
* Enhance - Full rewritten plugin
* Enhance - Product tab for serial numbers
* Enhance - Serial Key list table with status, order date and expire date
* Enhance - All Settings are in one place
* Enhance - API response
* Fix - Order confirmation page needs reload
* Remove - The notification tab from admin bar

= 1.1.3 (24 November, 2019) =
* Enhance - Improve API response
* Fix - Added compatibility with Product Input Fields
* Fix - Option to modify license validity
* Fix - WP Compatibility v5.3

= 1.1.2 (11 November, 2019) =
* New - Obscure serial keys in dashboard
* Enhance - Change API response
* Fix - Indexing serial number table
* Fix - WC Compatibility v3.8.0

= 1.1.1 (16 October, 2019) =
* New - Built-in support for leading PDF Invoice & Packing Slip plugins.
* Fix - Show auto draft products while creating serial numbers.
* Fix - Admin panel notification update latency.
* Fix - WP Compatibility v5.2.4
* Fix - WC Compatibility v3.7.1

= 1.1.0 (22 September, 2019) =
* Fix - Serial number reuse is not working on paypal gateway

= 1.0.9 (25 August, 2019) =
* Fix - WPML Support
* Fix - WP Compatibility
* Fix - WC Compatibility

= 1.0.8 (6 July, 2019) =
* Fix - Table create failed below mysql v5.6
* Fix - Serial number label chancing is not working on order complete page
* Fix - Creating multiple serial number for a single product when order failed

= 1.0.7 (24 June, 2019) =
* Fix - Compatibly with WP v5.2.2

= 1.0.6 (18 June, 2019) =
* Fix - Plugin translation issue
* Fix - Product order page serial number limitation
* Fix - Unwanted notification for the serial number
* Fix - Empty email notification
* New - Encryption - all serial number at DB is encrypted
* Tweak - Notification moved to the background process. No more failed check.

= 1.0.5 (24 April, 2019) =
* Fix - Serial number table not generating in sql version lower than 5.5 [#31]
* Confirm compatibility with WC 3.6.1

= 1.0.4 (1 April, 2019) =
* Fix - Email notification stop is not working
* Fix - Notification is showing for normal products too
* Fix - Validity takes negative value as input
* Fix - Sending serial numbers table even when order does not contains serial enabled products
* Fix - Serial number search is not working
* Enhance - Add serial number search filter
* Confirm compatibility with WC 3.5.7

= 1.0.3 (18 March, 2019) =
* Fix - Aroken style
* Fix - Auto-complete order
* Conditional styles/script loading

= 1.0.2 (15 March, 2019) =
* Fix - Link from product page to add new serial number page
* Fix - Conflict with Divi theme admin design
* Fix - Compatibly with WP v5.1.1
* Fix - Compatibly with WC v3.5.6

= 1.0.1 (6 March, 2019) =
* Rewrite - Key generation process
* Add - Software API
* Update - Settings
* Improve - Notification
* Fix - Bug

= 1.0 (21 January, 2019) =
Initial release