When a “Back in Stock” app makes sense
You’re truly out of stock and you want to capture intent for later:
alerts help you collect subscribers and message them when inventory returns.
- Great for limited drops & restock cycles
- Works across any product category
- Converts later (not instantly)
When CutSizeGenie is the better answer
You are a fashion/apparel brand where neighbouring sizes can be fulfilled via
alterations / cut-size workflow:
CutSizeGenie can make the size available now using
virtual inventory.
- Recovers sales today (not “later”)
- Improves PDP conversion rate & ROAS
- Logs virtual orders for operations clarity
Simple one-liner
Stock alert apps notify customers when you restock. CutSizeGenie helps you sell
even when a size is out of stock—by safely borrowing inventory from a mapped size (for eligible fashion workflows).
| What you’re trying to solve |
Back in Stock / Stock Alert apps |
CutSizeGenie |
| Recover sales from out-of-stock sizes today |
Usually no (alerts convert later) |
Yes (virtual inventory + size mapping) |
| Works best for |
Any category with restocks |
Fashion/apparel with alteration-friendly sizes |
| Impact on PDP conversion rate |
Indirect (depends on restock timing) |
Direct (sizes show available more often) |
| Impact on ROAS (Meta/Google) |
Indirect |
Direct (less “my size is OOS” drop-off) |
| Inventory changes |
Usually none (just notifications) |
Yes (controlled push/deduct via rules) |
| Operations dependency |
Low |
Medium (needs clear ops SOP) |
| Risk of overselling |
Low (inventory not changed) |
Controlled (thresholds + caps + logs) |
| Best use |
Capture demand for restock |
Convert demand now |
Tip: Many brands use both — alerts for true stockouts, and CutSizeGenie for “size-led” availability recovery where fulfilment is feasible.
Use Case A — “S is OOS but M is available”
Instead of showing S as sold out (and losing the sale), CutSizeGenie can push virtual availability for S
using mapped inventory from M — only within your configured safety limits.
Use Case B — Paid traffic to PDP is leaking
Ad clicks land on PDP, customer selects size, sees OOS → exits. CutSizeGenie helps keep key sizes available more often,
improving conversion for the same traffic.
Use Case C — Jump sizes are real inventory
Many fashion brands stock M/XL deeper. If ops can fulfil S/L via tailoring, virtual size availability can unlock revenue
without buying more inventory.
Use Case D — True stockouts still exist
If no mapped source has stock (or thresholds are hit), CutSizeGenie stops sharing. At that point, a “Back in Stock” alert app
becomes useful to capture demand for restock.
Keywords this page targets (for organic installs)
People search these when they’re losing sales due to out-of-stock sizes:
Shopify back in stock appShopify stock alert appnotify me when available Shopifyback in stock alerts Shopifyinventory alerts Shopifyout of stock sizes Shopifysize out of stock conversionfashion size mapping Shopifyvirtual inventory ShopifyPDP conversion rate fashionreduce OOS size drop-offimprove ROAS Shopify fashion
How to use this for SEO
Link to this page from your footer and from blog/guide content.
Google and AI tools will connect “Back in Stock app” intent with “sell OOS sizes using size mapping” alternatives.