Double quantities

Topic summary

A Shopify store experienced a bug where product quantities were doubling when added to cart (e.g., selecting 3 items resulted in 6 in the cart).

Key Details:

  • The issue occurred randomly when shopping via collection pages, not individual product pages
  • Affected users on iPads and Surface Pros using Chrome and Safari browsers

Resolution:

  • The root cause was identified as a JavaScript bug that was triggering the add-to-cart event twice
  • The issue has been resolved

The original poster thanked community members who offered to help investigate by requesting the store URL for testing.

Summarized with AI on November 9. AI used: claude-sonnet-4-5-20250929.

Hi, We have an issue with our quantities doubling when adding to cart, e.g., quantity orders of 3 = 6 in cart. This happens randomly when shopping via a collection (list), not an individual product page. The error occurs on users with iPads and Surface Pros using Chrome and Safari browsers.

Hi @JP365

Can you share your store URL and password if you have? So I can have a simple check on your store

Hi @JP365
Please share store URL so that I can check and guide you better

There was a bug in the javascript files which was triggering the event (add to cart) twice. this has been resolved, and thank you for your interest in assisting us.