<h2>Ninja Forms – Add fields to your products.</h2>
Ninja Forms is a popular WordPress plugin for creating custom forms. It offers an intuitive drag-and-drop interface, making it easy for users to build everything from simple contact forms to complex multi-page forms.
Enhancing this functionality, the Ninja Forms Product Addon allows you to seamlessly integrate custom forms into your WooCommerce products, enabling personalized customer interactions and data collection at the point of sale.
Features & Benefits:
<ul>
<li>Drag-and-drop form builder.</li>
<li>Pre-designed templates for various form types.</li>
<li>Integration with email marketing tools.</li>
<li>Ninja Forms Product Addon: Add custom forms to products.</li>
</ul>
When purchasing products from your store, you require information from your customer. Perhaps you run a t-shirt printing company, and you require the customer to enter in the text they would like to have printed on the t-shirt.
For this, you can add a simple text input field to your product listing, and charge an extra fee, using the Ninja Forms Product Add-ons extension for WooCommerce.
<figure id="attachment_506367" aria-describedby="caption-attachment-506367" style="width: 302px" class="wp-caption aligncenter"><a href="https://woocommerce.com/wp-content/uploads/2014/09/ninja-form-product-detail-page.jpg"><img class="size-full wp-image-506367" src="https://woocommerce.com/wp-content/uploads/2014/09/ninja-form-product-detail-page.jpg" alt="Easily add form fields to your product detail screens." width="302" height="396" /></a><figcaption id="caption-attachment-506367" class="wp-caption-text">Easily add form fields to your product detail screens.</figcaption></figure>
<a href="https://ninjaforms.com/" target="_blank" rel="noopener">Ninja Forms</a> is a popular free form creation plugin for WordPress. While most commonly used for contact forms and other such form-to-email requirements, the code is flexible enough to integrate seamlessly with WooCommerce products, using this extension.
<figure id="attachment_506365" aria-describedby="caption-attachment-506365" style="width: 604px" class="wp-caption aligncenter"><a href="https://woocommerce.com/wp-content/uploads/2014/09/ninja-forms-cart.jpg"><img class="size-full wp-image-506365" src="https://woocommerce.com/wp-content/uploads/2014/09/ninja-forms-cart.jpg" alt="Optionally add charges to your added form fields, and preserve the information on the order line item." width="604" height="310" /></a><figcaption id="caption-attachment-506365" class="wp-caption-text">Optionally add charges to your added form fields, and preserve the information on the order line item.</figcaption></figure>
Assign a Ninja Form to your product, and have the form fields displayed on the product listing, enabling your store’s customers to customize the product before adding it to their shopping cart.

Ninja Forms Product Add-ons

Add custom form fields to your product listings.

CG Product Availability Scheduler
Control when, where, and who can purchase your products — with scheduling rules based on time, location, and user roles
WooCommerce gives you a solid foundation to run an online store, but it doesn’t tell you when to sell. CG Product Availability Scheduler fills that gap — letting you restrict or open up purchases by time of day, day of the week, customer location, or user role. Whether you run a food delivery service, a wholesale operation, or a global shop, this extension gives you precise control without writing a single line of code.
Features
<ul style="padding: 0;margin: 0 0 28px 0">
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Global day & time rulesBlock or allow purchases on specific days of the week or within defined time windows — applied store-wide by default.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Product & category schedulingOverride global rules on individual products or entire categories. Fine-grained control where you need it, global defaults where you don’t.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Day-wise time slotsSet different availability windows for each day — for example, Monday 9 AM–5 PM, Saturday 11 AM–9 PM, Sunday closed.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Holidays & exception datesBlock specific holiday dates and add exception dates to open availability on days that would otherwise be restricted.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Start & end date rangesApply rules only within a date range — perfect for seasonal products, limited-time availability, or temporary restrictions.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Geo-location rulesRestrict or allow products by country or state. Display custom messages to customers based on where they’re browsing from.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> User role-based schedulingShow products to wholesale customers while hiding them from guests — or display different messages per role. Leverages native WordPress user roles.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Add to cart button controlHide or disable the Add to Cart button when a product is unavailable. Customize the restriction message with placeholders like <code style="background: #f0f4f8;border: 1px solid #dde3ea;border-radius: 4px;padding: 1px 6px;font-size: 12px;color: #185fa5">{allowed_days}</code>.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px">⏳ Countdown timer & shortcodeShow a live countdown to when a product becomes available again. Use the <code style="background: #f0f4f8;border: 1px solid #dde3ea;border-radius: 4px;padding: 1px 6px;font-size: 12px;color: #185fa5">[daycart_next_available]</code> shortcode to place it anywhere.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Calendar viewVisualize product availability across the month. Quickly spot gaps, conflicts, or upcoming holidays before they affect your store.</li>
<li style="background: #fff;border: 1px solid #e8e8ef;border-radius: 10px;padding: 16px 18px;margin-bottom: 10px"> Bulk rule applicationApply rules in bulk — global, weekdays only, or weekends only — to save time when managing large catalogs.</li>
</ul>
Common Use Cases
<ul style="padding: 0;margin: 0 0 28px 0">
<li style="background: #f9fafb;border: 1px solid #e8e8ef;border-radius: 8px;padding: 14px 16px;margin-bottom: 8px"> Restaurants & food delivery 
Only accept orders during opening hours — automatically.</li>
<li style="background: #f9fafb;border: 1px solid #e8e8ef;border-radius: 8px;padding: 14px 16px;margin-bottom: 8px"> Wholesalers 
Restrict access to special products for approved wholesale roles only.</li>
<li style="background: #f9fafb;border: 1px solid #e8e8ef;border-radius: 8px;padding: 14px 16px;margin-bottom: 8px"> Global stores 
Block restricted products from shipping to specific countries or regions.</li>
<li style="background: #f9fafb;border: 1px solid #e8e8ef;border-radius: 8px;padding: 14px 16px;margin-bottom: 8px"> Seasonal products 
Make items available only during festivals, promotions, or a set date window.</li>
</ul>
 
⬥ Getting Started
<ol style="padding: 0;margin: 0">
<li style="display: flex;gap: 14px;align-items: flex-start;margin-bottom: 14px"><b style="display: inline-flex;align-items: center;justify-content: center;min-width: 28px;height: 28px;background: linear-gradient(135deg,#185FA5,#4A9BDE);color: #fff;border-radius: 50%;font-size: 12px;font-weight: bold">1 
Install and activateUpload and activate the extension from your WordPress plugins screen. 
</li>
<li style="display: flex;gap: 14px;align-items: flex-start;margin-bottom: 14px"><b style="display: inline-flex;align-items: center;justify-content: center;min-width: 28px;height: 28px;background: linear-gradient(135deg,#185FA5,#4A9BDE);color: #fff;border-radius: 50%;font-size: 12px;font-weight: bold">2 
Open the schedulerIn WP Admin, go to WooCommerce → Product Availability Scheduler to access all settings. 
</li>
<li style="display: flex;gap: 14px;align-items: flex-start;margin-bottom: 14px"><b style="display: inline-flex;align-items: center;justify-content: center;min-width: 28px;height: 28px;background: linear-gradient(135deg,#185FA5,#4A9BDE);color: #fff;border-radius: 50%;font-size: 12px;font-weight: bold">3 
Configure your rulesSet global, product, category, geo-location, or user-role rules depending on your store’s needs. 
</li>
<li style="display: flex;gap: 14px;align-items: flex-start;margin-bottom: 14px"><b style="display: inline-flex;align-items: center;justify-content: center;min-width: 28px;height: 28px;background: linear-gradient(135deg,#185FA5,#4A9BDE);color: #fff;border-radius: 50%;font-size: 12px;font-weight: bold">4 
Add countdown timersDrop <code style="background: #f0f4f8;border: 1px solid #dde3ea;border-radius: 4px;padding: 1px 6px;font-size: 12px;color: #185fa5">[daycart_next_available]</code> onto any product page to display when availability resumes. 
</li>
</ol>

CG Product Availability Scheduler

<div class="wccom-product-heading__row">
<div class="wccom-product-short-description text-pretty">Product Availability Scheduler for WooCommerce allows store owners to control when and where products can be purchased. schedule product availability and visibility by specific date, day, time, location, and user roles with customizable rules.</div>
</div>

Ninja Forms Product Add-ons vs CG Product Availability Scheduler