Custom Coding Stopped Working

Store Design
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Topic summary

A user’s custom code broke after updating their Dawn theme to the latest version. They want to continue using the latest theme version but need help identifying and restoring the broken customizations.

Key Points:

  • Shopify themes only support automatic updates if the code remains unmodified (no app installations that alter code, no manual changes, no language editor adjustments)
  • Customizations made through the Theme Editor typically carry over to updated versions (with few exceptions like new settings)
  • Custom code modifications do not survive theme updates

Recommended Solution:

  • Perform a manual update of the theme
  • Reconfigure any apps the user wishes to keep
  • Reapply custom code modifications

The discussion remains open with the user seeking guidance on identifying and restoring their specific customizations.

Summarized with AI on November 7. AI used: claude-sonnet-4-5-20250929.
1

Hi Everyone,

As I expected, after updating my Dawn theme to the latest version, my custom code stopped working. Is there an easier way to identify the issue and restore it?

I have an old theme backup, but I prefer to use the latest version.

Thanks in advance.

Gui.

2

Hi @Guifonte
Shopify themes available on our Theme Store can receive automatic updates, but this is only possible if your theme code remains in its original state. This means no apps have been installed that modify the code, and no manual changes have been made, including any adjustments to translations in the language editor.

Customizations made using the Theme Editor for Online Store 2.0 themes should carry over to updated versions, with a few exceptions, such as new or updated settings.

Given your situation, I recommend performing a manual update, then re-configuring the apps you wish to keep and reapplying any custom code.

I hope this helps, but please feel free to reach out if you have any further questions.

Warm regards,

Dawood Mirza.