← All recipes
✓ Live-testedStarter

Back-in-Stock Alert

Emails you the moment a sold-out item is back, so you restart ads and tell waiting buyers.

What it does: When a product that was sold out gets stock again, you get an email right away. It also removes the out-of-stock tag from the product. Then you can turn ads back on and tell anyone who asked.

Why people want this: Owners keep a back-in-stock app because it "captures demand I'd otherwise lose entirely" (reddit.com/r/SideProject/comments/1solefc). Others pause ads when stock runs out and forget to restart them.

Install in 3 steps

  1. Import. In Shopify, open the Flow app → Import → pick the .flow file you downloaded.
  2. Type your email once. Click Edit (top right), click the Send internal email box, and replace you@yourstore.com with your email. Click Save.
  3. Turn on. Click Turn on workflow, then Turn on.

That's it. You need Shopify Basic or higher. Flow is free.

Limits

  • It emails you, not your shoppers. (Flow can't email shoppers.)
  • Only works for products where Shopify tracks quantity.
  • One email per variant (size or color) that comes back.
  • Built from Chef's draft back-in-stock-internal-alert. Pairs with the Low-Stock Reorder Alert.

How you install it

Download, import, add your email, turn on. You download a Shopify Flow file, import it in Flow, type your email into the email step once (Shopify signs Flow files, so we can't prefill it), and turn it on. About 5 minutes. A manual step-by-step path is included too.

What it does

Emails you the moment a sold-out item is back, so you restart ads and tell waiting buyers.

Who it's for

  • Shopify store owners who want this job off their plate
  • Beginners: every recipe has beginner, operator and technical paths

What you get

  • A ready-to-import Shopify Flow file (where available)
  • Step-by-step setup checklist written for beginners
  • Copy-paste settings (triggers, conditions, email text)
  • Store profile worksheet to tailor it to your store
  • Ready-to-use AI prompts
  • Verification test so you know it works
  • Troubleshooting guide
  • 12 months of updates and a 14-day 'it didn't run' refund

Setup time and cost

Setup: ~5 min. Platform: Shopify Flow (free). Price: $19 one-time, or included in All-Access.

FAQ

Is this an AI agent?

Not yet. It's an automation that runs on its own inside Shopify Flow. Real AI agents are coming as a premium tier.

Do I need to be technical?

No. Download, import, add your email, turn on.

What if it doesn't work in my store?

You're covered by a 14-day 'it didn't run' refund.

Related guides