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Warn: Checkout Warning Popups

Add prop 65 product labels & badges on add to...

by Effective Apps · Launched: December 2019 · Free plan available.

5.0 (10) on Shopify Used by 182 Shopify stores Built for Shopify

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Add warnings for Prop 65 (P65), product availability, shipping delays, note, disclaimer and age gate

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About Warn: Checkout Warning Popups

Want to inform customers about possible shipping delays? Need to add a global note to a certain products collection? Did you stop shipping to some countries and need an easy way to alert customers? Warn got you covered.With Warn you can add unlimited, customizable warnings to your product page (PDP) and Checkout page, and target them globally or to specific products & countries.Secure your store with accurate warnings, shipping delays alerts, and reduce fraud, chargebacks and inconveniences. Show popups and textual warning note/disclaimer on product page (PDP) & checkout Add unlimited warnings: Prop 65, notice, FAQ, product labels & badges and alerts Show the warnings globally or target specific products, collections & countries Fully customizable warning style, texts, images and buttons to match your store You can entirely block the checkout process when the checkout warning appears Show more Show less

Last verified: July 15, 2026 · Fresh

App details

Developer
Effective Apps
Pricing
Free plan available
Launched
December 2019
Rating
5.0 (10) on Shopify

Key features

  • Add warnings for Prop 65 (P65), product availability, shipping delays, note, disclaimer and age gate
Integrations with:

Checkout, Collection pages, Geolocation, Mobile, Product forms, Product pages, Shopify Admin

1 plan · starts free

Free

Free

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 15 Shopify App Store reviews

Use the arrows to read individual reviews

Works perfectly for our needs
— Melmira Bra & Swimsuits
Very good app and amazing support!
— Kalustyan's
Die App funktionierte auf meinem Computer/Betriebssystem zu Beginn nicht ganz einwandfrei, doch nach kurzem Chat mit dem Support Team wurde mir 100%ig geholfen. Sehr effizienter Support. Empfehlenswert!
— Salty & Free
So far so good with this app. I'm using it to display a prop 65 warning on products. What really sold me on this particular app is that I didn't like where the warning placement was on my product page so I reached out to support. Their support chat was so quick, not only to assess my problem, but they had me in touch with one of their devs within a few minutes in the same chat and he modified the...
— russell+hazel
I needed a quick way to add the CA Prop 65 warning to all product pages. Geolocation Warnings & Pop Ups did the trick.
— Skate Hub
Really easy to use - had my warning on selected products up and ready to go in less than 1 minute, no exaggeration. Thanks!
— Boutique 8
What an amazing App and Easy to use, it took me 1 minute to add my message by location, also what a great support system they have, they reply back and support on the spot. LOVE IT.
— myHoldal
I needed a popup for International customers only and the app works great. It pops up once per day, per product opened, which is setup in the configuration. Custom service is great and has a fast response time.
— Grout360
This app is simple, user-friendly and efficient. To top it off, customer service is an A+. You can't go wrong with this one.
— Moon Freya
Excellent app! Support is fast and efficient. I would recommend it to everyone who needs warnings on their website.
— Nemanja Nikolic - Abstract Paintings
I used the app so that I could create an alert for my customers. I am so very happy. Excellent app!!
— Naomi Rose Essentials
Very Good App. It does what it says on the can - brilliant. I used it for pop ups on sellected products for customers in a specific country. Great customer support - Quick and Clear. Great value for money and the best app I have used on Shopify. Thank you
— simplyfrenchvintage
I used this app to pop up an upodated information for delivery . It helps a lot. I would recomond you to try this too.
— Shady Hill Luxury Flowers
Great App, Perfect customer service. When I installed the app they were running maintenance of the server. I had issues. It took them 10 minutes to answer me back and help me installed the warning note to my website themselves. Great fast response, good customer service too.
— CScompanies
After a not so good start, the installation and all worries were soon readjusted with the snappy response of the support team. They have now resolved the problems and everything is working perfectly well. Even open to suggestions and adjustments to help the app along which is always nice to see developers willing to work with merchants! Not to mention this app amongst others is very competiti...
— ThatDaily.uk

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