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Custom Attribute Manager (CAM) lets you define attributes such as <code>role</code>, <code>aria-label</code>, and <code>tabindex</code>. 
Basic functionality is free. Premium unlocks: 
* Add unlimited attributes
Envato-ready with licensing system.
<h3>External services</h3>
This plugin integrates with Freemius (freemius.com) to handle licensing, checkout, downloads and software updates.
What the service is and what it is used for 
– Freemius provides the hosted checkout and license management used by this plugin. It is used to present the checkout page, process payments, deliver the downloadable PRO zip after purchase, and manage licenses/auto-updates.
What data is sent and when 
– When a user opens the checkout or activates a license, the plugin communicates with Freemius. The following categories of data may be transmitted: 
 – Site information: site URL, site admin email, WordPress version and plugin slug to help with license issuance and compatibility checks. 
 – Purchase data: product id, plan id, number of licenses, and billing selection (used to create the order). 
 – License/account info: purchaser email and generated license token (for activation and update checks). 
 – Payment processing: payment is handled via Freemius’ payment processors (Stripe/PayPal) — the plugin does not store raw payment card data. 
 – IP address and user-agent: for fraud prevention and transaction logging. 
– Data is sent when the checkout is opened, when a purchase completes, and when the plugin verifies or renews a license (for updates). The plugin only sends data required to complete these operations.
Where the service is hosted and links 
– Freemius website and checkout: https://freemius.com and https://checkout.freemius.com. 
– Freemius Terms of Service: https://freemius.com/terms/ . :contentReference[oaicite:1]{index=1} 
– Freemius Privacy Policy & data practices: https://freemius.com/privacy/ and https://freemius.com/privacy/data-practices/ . :contentReference[oaicite:2]{index=2}
Why we use it 
– We use Freemius to simplify secure checkouts, license issuance, and automatic plugin updates for paying users. Using Freemius avoids directly handling PCI data in our plugin.
User control and privacy 
– The plugin does not send any personal data to Freemius without the user taking an action (for example, clicking the checkout link or activating a license). Users may contact Freemius (or the plugin author) to request deletion of account or purchase records. Freemius’ data handling is governed by their privacy policy linked above. :contentReference[oaicite:3]{index=3}

Custom Attributes Manager

Manage custom HTML attributes for elements and unlock pro version to add unlimited attributes.

GauravNagpal

Less sold products with special attributes and tags can be sold easily using this feature without affecting sales for popular products. WooCommerce coupon section extension for adding coupons for special attributes and tags.
After enabling this plugin, you will see a new multiple select box in the coupon “User Restriction” section. All the other preferences will not be affected; it will work perfectly as it was before.
<ul>
<li>Work for both attributes and tags</li>
<li>Coupon categories</li>
<li>No new section for coupons</li>
<li>All other existing features will remain the same</li>
<li>Can be clubbed with other WooCommerce coupon rules</li>
<li>Can be applied percentage or a flat amount on products</li>
<li>Supported variable and simple product types </li>
<li>Attribute created in “Products > Attributes” tab are supported</li>
</ul>
If you like this easy plugin and if the plugin is improving your sales, then <a href="https://www.paypal.me/gauravnagpal" rel="nofollow ugc">Donate</a> a little to this development time or at least spend a couple of minutes for feedback.

Attributes Coupon for WooCommerce

WooCommerce coupon section extension for adding coupons for special attributes and tags. Also, you can categorise the coupons.

Custom Attributes Manager vs Attributes Coupon for WooCommerce