We’re excited to share that the Next-Gen Dev Platform is now available to every Shopify app developer. With this upgrade, you can streamline how you build, test, and manage your apps. Here’s what you can do with the new platform: Create dev stores with any plan, including Plus, for more flexible …

I’ve set my app to automatically_update_urls_on_dev = true. Everytime, shopify app dev command creates new APP URL, but it does not reflect on .toml file and because of this app preview does not load. It’s not much of a problem, I copy APP URL to .toml files and it works. But I am wondering if I am…

So, I was forced to do the new app migration today. I tried migrating my app and didn’t work well. The app’s screen (the one made with Remix) is broken and the theme doesn’t see the app in the them Customize > App embeds anymore. [Screenshot 2025-09-08 at 10.33.27] I removed Horizon completely a…

I’ve set my app to automatically_update_urls_on_dev = true. Everytime, shopify app dev command creates new APP URL, but it does not reflect on .toml file and because of this app preview does not load. Hi @Bhupendra_Kumar – The new behavior of automatically_update_urls_on_dev is to update the URLs…

I see this. I also see this when the theme editor tries to load App embeds; any idea why?: [b] It gets even worse if I change theme. If I publish Dawn instead of Horizon, I see this error in the very first screen of theme Customize even before my app’s embed is rendered (if I change back to Horiz…

You should rename file extensions/theme-helper/shopify.theme.extension.toml to extensions/theme-helper/shopify.extension.toml and redeploy the app. It works with me.

I don’t have a “extensions/theme-helper/shopify.theme.extension.toml” file. Never had on. I only have a extensions/my-app/shopify.extension.toml when it comes extensions. But I solved it when Nick told me to create a new dev store. All work fine in the new store.

I don’t understand. It’s working now. The app preview is working, but the App URL in the console differs from the one specified in shopify.app.toml (APP URL and auth callback URLs). I feel foolish. I appreciate your response very much. Is this how it is supposed to be? I READ THIS IN SOME OTHER PO…

-YES! Does that mean I shouldn’t worry? Previously, the APP URLs used to change in shopify.app.toml too. My app utilises app proxies, so I constantly need to copy and paste the new APP URL there in the .toml file. Is this a limitation? It would be better if it were updated automatically. The App…

Thank you so much. Best regards!

[image] NickWesselman: Test apps locally In the past I was able do shopify app dev and open the preview in a store that was not the development store. So was I able to test the app in a specific store that belonged to our client. Now when I scan the preview to install the app and see the new…

The Next-Gen Dev Platform is now available to all app developers

Dev Platform

Liam-Shopify September 16, 2025, 8:50am 23

Hi @karn_Bhushan - it’s currently not possible to delete apps but this is on our radar to address, see:

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The Next-Gen Dev Platform is now available to all app developers

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