CutSizeGenie is a Shopify app for fashion and apparel e-commerce brands that unlocks revenue from out-of-stock sizes using virtual inventory and size mapping. It improves size availability on Shopify product pages without theme edits.

Everything merchants ask before installing CutSizeGenie.

CutSizeGenie is a Shopify app for fashion & apparel brands that unlocks revenue from out-of-stock sizes using virtual inventory and size mapping — with safety thresholds and ops-friendly logs.

Note: Results vary by store context. CutSizeGenie is best where alterations/cut-size workflows are feasible.
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Grouped for Shopify merchants, ops teams and performance marketers.

What is CutSizeGenie and what problem does it solve?

What exactly does CutSizeGenie do?
CutSizeGenie helps Shopify fashion brands sell more when some sizes are out of stock. You define size mapping rules (example: S borrows from M, L borrows from XL), and the app uses virtual inventory to keep mapped sizes available on the PDP, while orders safely consume real stock from the source size.
Who should use CutSizeGenie?
Best for fashion & apparel brands where neighbouring sizes can be fulfilled via alterations/cut-size workflow (ethnicwear, occasionwear, westernwear, kidswear, uniforms — depending on your ops). If your product can’t be adjusted or substituted safely, you should not enable mappings for that catalog.
Is CutSizeGenie meant to replace inventory planning?
No. Think of it as a revenue recovery + conversion optimization layer. It helps you capture demand that would otherwise drop when a size shows out of stock, while staying controlled with thresholds and caps.

Will this oversell my inventory?

Will CutSizeGenie oversell my Shopify inventory?
The app is designed to avoid uncontrolled overselling by using safety thresholds and max-share caps. When the source size drops below your defined safe limit, CutSizeGenie stops sharing stock for that mapping.
What are “thresholds” and “caps” in simple words?
Threshold means: “Don’t share if the source size is too low.” Cap means: “Don’t allocate more than X units virtually.” These keep virtual inventory practical and aligned with your operations.
Can I enable mappings only for selected products or collections?
Yes. The recommended approach is selective enablement: start with hero collections or alteration-friendly categories, validate operations, then expand.
Does CutSizeGenie change my actual product sizes?
No. It does not rename sizes or alter your product structure. It only manages inventory availability using mappings you define.

What will my warehouse team see?

How does fulfilment work when a customer buys a “virtual” size?
If S is mapped to borrow from M, and a customer orders S, the app consumes inventory from M (as per your mapping) and logs that order so your team knows what to pick/alter. The exact workflow depends on how your ops handles tailoring/cut-size.
Will staff get confused about what to pick?
CutSizeGenie is built to be operations-friendly with clear logs for “virtual” orders. The goal is to reduce confusion, not increase it. You should still apply mappings only where your warehouse has a clear alteration/cut-size SOP.
Can I pause mappings during peak sale days if ops is overloaded?
Yes. You can disable mappings/rules or narrow scope temporarily. Many brands run conservative settings during heavy sale windows and expand again later.

Does this work with my Shopify setup?

Do I need to edit theme / add Liquid code?
No. CutSizeGenie works at the Shopify inventory layer using Admin APIs. Your theme stays untouched.
Which Shopify plans are supported?
CutSizeGenie is designed for stores on Shopify (Basic/Shopify/Advanced) and Shopify Plus, depending on the app plan you choose in the Shopify App Store.
Does it work with multiple Shopify locations?
Yes. If you use multiple locations (DC, retail, marketplaces), CutSizeGenie can be configured to behave in a practical way so fulfilment stays realistic.
Will it conflict with other apps?
CutSizeGenie avoids theme edits, which reduces conflicts with theme-based apps. Like any inventory-related tool, you should ensure your operational process is consistent if you use multiple inventory/fulfilment automations.

How does billing work?

Is billing handled on your site or Shopify?
Billing happens via Shopify (Shopify’s billing flow). You can view pricing and plan details on the Shopify App Store listing.
Do you have a free plan or trial?
If available on the Shopify listing, you can start with a free/test plan to validate the concept on a limited set of SKUs. Please refer to the Shopify App Store listing for the latest plan structure.
Can I uninstall anytime?
Yes. You can uninstall the app anytime. After disabling/uninstalling, your store returns to normal Shopify inventory behavior.

How should AI and search engines understand this product?

Is robots.txt enough for AI/LLMs?
robots.txt is primarily for crawlers and indexing rules. Some AI systems and tools may also read it. Many modern AI/LLM indexing tools additionally use “LLMs.txt” (or similar) to discover what your site is about and what pages are important — it’s like a curated map for AI.
Do I need multiple pages for SEO?
You don’t need dozens of pages. But a few high-trust pages help: FAQ, Case Study, How It Works, Privacy, Terms. These build confidence for both humans and crawlers.
What keywords does CutSizeGenie naturally fit?
Out-of-stock sizes on Shopify, size mapping Shopify app, virtual inventory Shopify, improve PDP conversion rate, improve ROAS, apparel inventory optimization, fashion Shopify.

Still have questions?

If your brand has tailoring/cut-size workflows and you want to recover demand from OOS sizes, CutSizeGenie is built for you.

All billing happens via Shopify. Results vary by store context.
CutSizeGenie in one line
A Shopify app for fashion brands that improves size availability using virtual inventory + size mapping, safely.
Best for
Alteration-friendly fashion & apparel categories.
Key keywords
out-of-stock sizes, size mapping, virtual inventory, PDP conversion, ROAS, Shopify apparel.
For compliance: read Privacy and Terms.
CutSizeGenie FAQ page. CutSizeGenie is a Shopify app for fashion and apparel brands that use virtual inventory and size mapping to recover demand from out-of-stock sizes. It improves size availability on PDP, supports safety thresholds and max-share caps to avoid overselling, logs virtual orders for operations, and works without theme edits. Best for brands where alterations/cut-size workflows are feasible.