Transform out-of-stock products into sales opportunities and reduce frustrated visitors.
Automatic product suggestions

FLAVOR Substitute

Intelligent management of out-of-stock products in WooCommerce with AI-powered product suggestions, complete SEO optimization, and 100% cache compatibility. More customer satisfaction = more revenue.

100% cache-compatible
Only +2.2% Load Time
Schema.org SEO
More Revenue
Buy Now Discover Features
+35% Conversion
Satisfied Customers
No Dead Ends
Revenue Increase
Lightning Fast
Out of Stock
XYZ Premium Sneaker White
Not available
✨ Intelligent Alternatives
YXZ Premium Sneaker White
ZXY Premium Sneaker White
YZX Premium Sneaker White
ZYX Premium Sneaker White
6+
Matching Criteria
18+
Hook Positions
3
Archive Modes
100%
Cache compatible
The Problem

Out-of-stock products cost you revenue!

Every out-of-stock product is a potential dead end for your customers – and lost revenue for you.

Lost Sales

Visitors leave your shop frustrated when desired products are unavailable – without an alternative.

SEO Damage

Out-of-stock product pages without correct schema markup harm your Google ranking in the long term.

Manual Work

Manually maintaining alternative products is time-consuming and becomes impossible with large catalogs.

Tip: NEVER simply delete out-of-stock products and risk ending up with a 404 error. Also see our plugin "Smart 404 Auto Redirect Fixer"
The Solution

Intelligent product matching

FLAVOR Substitute analyzes your entire WooCommerce shop inventory and automatically finds the best alternatives for out-of-stock products.

  • Brand Matching Compatible with all common brand plugins
  • Price Similarity Products in a similar price range are preferred
  • Title Analysis Semantic similarity through intelligent text analysis
  • Fully Configurable Priorities and weightings individually customizable
Matching Algorithm
50 Pkt Brand
30 Pkt Category
25 Pkt Title Similarity
15 Pkt Price Proximity
10 Pkt Tags
10 Pkt Attributes
Flexibility

3 archive modes for every need

Choose the perfect mode for your shop – from subtle to completely hidden.

⭐ Recommended

Badge + Sorting

Out-of-stock products are marked with a badge and sorted to the end. 100% cache-safe.

Customizable Badge Design
Optional Image Darkening
Grayscale Filter Available
Best Performance

WC Catalog Visibility

Uses native WooCommerce settings. Products are removed from archives.

Removed from Shop/Categories
Accessible via Direct Link
Discoverable in Search
Automatic recovery

No Archive Changes

Archives remain completely unchanged. Only product pages are adjusted.

Archives Unchanged
Only Individual Pages Affected
For Custom Archive Logic
Maximum Control
Features

Everything You Need

Professional tools for effective inventory management in your WooCommerce shop.

Variants Support

Full support for variable products. Detects partial stock and displays available variants.

18+ Hook Positions

Place the notices exactly where you need them. From header to footer.

Per-Product Settings

Individual settings per product. Override global options as needed.

Cache Warmup

Automatic daily warmup for optimal performance on first page load.

Placeholder System

Dynamische Texte mit {product_name}, {category} und {brand} Platzhaltern.

Import/Export

Secure and transfer your settings easily via JSON export.

Archive Management

  • 3 flexible archive modes (Badge, WC Native, No change)
  • Customizable badge design (overlay, corner, banner)
  • Optional image darkening with adjustable opacity
  • Grayscale filter for product images
  • Automatic sorting of out-of-stock products
  • 100% cache-compatible with all common caching plugins

Intelligent Matching

  • 6 matching criteria: Brand, Category, Title, Price, Tags, Attributes
  • Configurable priorities via drag & drop
  • Two-tier candidate system for optimal results
  • Support for Perfect Brands, YITH Brands, WC Brands
  • Price similarity with ±30% tolerance
  • Semantic title analysis with stopword filtering

Variants Support

  • Full support for WooCommerce Variable Products
  • Partial stock detection
  • Priority display of available variants
  • JavaScript-based dynamic variant display
  • Variation-specific suggestions
  • Recursion guards against infinite loops

SEO optimization

  • Schema.org JSON-LD with out-of-stock availability
  • Related Products markup for alternatives
  • Optional noindex with follow attribute
  • Canonical URL Preservation
  • HTTP Header (X-Product-Availability)
  • Compatible with Yoast, Rank Math, AIOSEO, SEOPress

Frontend & Display

  • 18+ predefined hook positions
  • Fully customizable notice styling
  • Responsive grid system (desktop/tablet/mobile)
  • Native WooCommerce Templates
  • Platzhalter: {product_name}, {category}, {brand}
  • Slide-In/Out Animations

Pro Product Settings

  • Individual notice customization per product
  • Position override with custom priority
  • Define manual product suggestions
  • Disable suggestions completely
  • Override archive behavior
  • Hide badges for individual products

Cache System

  • Multi-level transient cache system
  • HTML cache for rendered output
  • Taxonomy Term Cache (1 hour)
  • Automatic cache warmup (daily)
  • Intelligent cache invalidation
  • Manual cache management in admin

Admin & Tools

  • Clear settings page with tabs
  • Live preview for design changes
  • Settings import/export (JSON)
  • Visibility synchronization
  • Reset to Default Values
  • WooCommerce HPOS Compatible
Tip: Use NitroPack as the best caching plugin
Performance

100% Cache Compatibility

FLAVOR Substitute was built from the ground up to work with page caching solutions.

Intelligent caching strategy

Badge mode works purely CSS-based. No dynamic PHP queries in the frontend. Separate HTML cache layer for product suggestions with intelligent cache invalidation upon inventory changes.

SEO

Complete search engine optimization

Correct schema markup and meta tags for optimal visibility in Google & Co.

Schema.org JSON-LD

Automatic out-of-stock markup and related products for rich snippets in search results.

"availability": "OutOfStock" "isRelatedTo": [...]

Meta Tags & HTTP Header

Optional noindex for out-of-stock products with follow attribute to preserve link equity.

X-Product-Availability: OutOfStock X-Robots-Tag: noindex, follow

Canonical URL Preservation

Full compatibility with Yoast SEO and Rank Math. Reliably prevents duplicate content.

SEO Plugin Integration

Seamless integration with Yoast SEO, Rank Math, AIOSEO, and SEOPress for conflict-free operation.

Benchmarks

Minimal performance impact

Tested with a medium-sized shop (5,000 products). FLAVOR Substitute adds only minimal load time.

+2.2%
Product Page with Cache
+1.3%
Archive Page with Cache
11.5%
Faster with Warmup
~10ms
Absolute Overhead
Performance Comparison
Without Plugin 450ms
With Plugin (Cache) 460ms
Without Cache 520ms
Tip: Use best PageSpeed tool
Compatibility

Works with your setup

Tested and optimized for the most popular themes, page builders, and plugins.

Themes
Woodmart Flatsome Astra OceanWP Storefront BeTheme

and many more...

Brand Plugins
Perfect Brands YITH Brands WC Brands Product Brands Custom Taxonomies
SEO Plugins
Yoast SEO Rank Math AIOSEO SEOPress FLAVOR SEO Squirrly
Prices

Choose Your Plan

Flexible licensing options for every need – from individual shops to agencies.

Monthly Annually 2 months free

Personal

Perfect for Single Shops

€ 15 / month
Billed annually (€179/year) Billed Monthly
  • 1 Website License
  • All Core Features
  • Intelligent Matching
  • SEO optimization
  • Email Support
  • Priority Support
  • White-Label
Get started
Most popular choice

Business

For Growing Businesses

€ 39 / month
Billed annually (€468/year) Billed Monthly
  • 5 Website Licenses
  • All Core Features
  • Intelligent Matching
  • SEO optimization
  • Priority email support
  • Advanced Statistics
  • White-Label
Get started

Agency

For Agencies & Developers

€ 79 / month
Billed annually (€948/year) Billed Monthly
  • Unlimited Websites
  • All Core Features
  • Intelligent Matching
  • SEO optimization
  • Premium Support (Chat)
  • Advanced Statistics
  • White-Label option
Get started
30 Day Money-Back
Secure Payment
Automatic Updates
German Support
FAQ

Frequently asked questions

Does the plugin work with my theme?

Yes! FLAVOR Substitute uses native WooCommerce templates and is compatible with all WooCommerce-compatible themes.

Does the plugin slow down my shop?

No. With active cache, the overhead is only about 10ms per page view – barely measurable for your visitors.

What happens when a product becomes available again?

The plugin automatically detects inventory changes and adjusts the display accordingly. No manual work required.

Can I control the product suggestions manually?

Yes! You can set manual alternatives per product that override the automatic algorithm.

Is the plugin HPOS-compatible?

Yes, full compatibility with WooCommerce High-Performance Order Storage (HPOS) for WC 8.0+.

Is There a Money-Back Guarantee?

Yes, 30-day money-back guarantee. If you are not satisfied, we will refund the full purchase price.

Automatic product suggestions for out-of-stock products

FLAVOR Substitute is the intelligent WooCommerce solution for automatic product suggestions when items are out of stock. Instead of losing frustrated visitors, the plugin transforms every "Not available" page into a sales opportunity. The AI-powered matching algorithm analyzes your entire product range and presents suitable alternatives based on brand, category, price, and product similarity.

More conversions through smart alternatives: Studies show that up to 30% of visitors leave a shop when their desired product is unavailable. With automatic product suggestions, you keep these customers in your shop and measurably increase your conversion rate. The intelligent recommendation system ensures that visitors always find a relevant alternative – fully automatically and without manual effort. Whether out-of-stock management or inventory optimization: FLAVOR Substitute is your all-in-one solution for professional product management.

Sales optimization for WooCommerce: FLAVOR Substitute integrates seamlessly into any WooCommerce shop and works with all common themes and page builders. 100% cache compatibility guarantees best performance, while Schema.org markup protects your SEO visibility. Transform out-of-stock products from sales killers into sales drivers – with intelligent product alternatives that really convert.

Increase customer satisfaction with similar products: When customers encounter an out-of-stock product, the likelihood of purchase drops drastically. With FLAVOR Substitute, you immediately present suitable replacement products and can display similar products. This not only improves user experience but also increases average order value. Use intelligent cross-selling functions and automatic product recommendations to sustainably optimize your shop conversion.

Technically mature for enterprise shops: With multi-level caching, batch processing, and optimized database queries, FLAVOR Substitute is also suitable for large WooCommerce shops with thousands of products. Compatibility with NitroPack, WP Rocket, LiteSpeed Cache, and other caching solutions ensures lightning-fast loading times. Variable products, product variants, and complex assortments are fully supported.

Are you looking for a reliable solution for WooCommerce product suggestions? FLAVOR Substitute is the leading product alternatives plugin for the German-speaking market. With the integrated Related Products function, you always show your customers suitable alternatives. Increase your e-commerce sales and minimize cart abandonment through intelligent product suggestions – for sustainable revenue growth in your online shop.