Why is the sort by dropdown menu on my online store not functioning?

Shopify Discussion

Topic summary

Sort-by dropdown on collection pages is blank and selections (e.g., Price: Low to High) do nothing, while the rest of the store functions normally.

Recent change: custom code was added to show remaining inventory on product pages using a Shopify vintage theme (Debut) guide. The timing suggests this edit may have affected collection sorting.

Likely cause: a code conflict or error introduced during the stock-level customization, potentially impacting the collection template or associated JavaScript that powers the sort control.

Suggested actions:

  • Revert recent theme edits via the online code editor’s file history or switch to a backup theme to confirm if the issue disappears.
  • Share the store URL (and password if protected) so others can test and inspect.
  • If uncomfortable with code, grant collaborator access to allow a developer to review recent changes.

Status: Unresolved. Awaiting store details and/or a rollback test to isolate the offending change.

Summarized with AI on January 17. AI used: gpt-5.
1

Hi!

I just noticed today that the sort by menu is not working on my online store. I’m not sure how long this has been the case though. Today I edited some code in my store so it displays the current stock levels on my product pages but I don’t know if that caused the problem (I used the guide on this site to edit it: https://help.shopify.com/en/manual/online-store/themes/themes-by-shopify/vintage-themes/customizing-vintage-themes/show-remaining-quantity?section=Debut ). Everything else seems to work fine in the store, it’s just that the sort by menu is blank when I go to collections page and when I click sort by and select for example Price low to high, nothing happens.

Any idea what might have caused this and how to fix it?

Thanks!

2

Hey @Villle
It’s possible that the changes you made to display current stock levels on your product pages may have inadvertently affected the functionality of the sort by menu on your Shopify store.

Do you have some backup themes? or if you made the changes with online editor then the previous code will be there in the history.

3

Hello @Villle

Could you kindly provide your store’s URL and, if it’s protected, the password as well? There might been some code modifications, so if you’re not comfortable with the code, please feel free to send me a collaborator request.