Why is my add to cart button not working?

Technical Q&A

Topic summary

Add to cart buttons are failing across multiple Shopify stores, leading to missed sales. The original poster hasn’t changed settings recently and seeks help; a helper requested the store URL to investigate.

Recent reports: another merchant confirms the issue today with no recent changes (craftedoflight.com). A third merchant links the breakage to adding a WhatsApp button and shares a preview URL (8b4145-39.myshopify.com).

Proposed causes (from helper):

  • Interference from a plugin/app; disabling recently installed apps may restore the button.
  • Conflicting JavaScript on the site causing the click action to fail.
  • Broken event handling if the button was customized or if the theme uses many custom elements (common with third‑party themes).

Action items suggested: share store URLs for testing, temporarily disable newly added apps (e.g., the WhatsApp integration), and check for JS conflicts or custom event issues tied to the theme.

Status: unresolved and ongoing; investigation pending based on provided URLs and app/theme conflict checks.

Summarized with AI on December 29. AI used: gpt-5.
1

Hello, I haven’t changed any settings with my website recently and have just been informed that my add to cart button isn’t working. I thought that my Xmas sales were slow but hadn’t realised this might have been the issue. Please help me resolve this.

Thanks,

Andrew

2

Hello @Andrew_Smith9 ,

Can you share the store URL so that I can troubleshoot the same on my end?

There could be many reasons why the add to cart button is not working on your website. I am mentioning several items :

  1. Make sure that the add to cart button is not being blocked by a plugin or a third-party app. Some plugins or apps can interfere with the add to cart button and cause it to stop working. Try disabling any recently installed plugins or apps to see if that fixes the issue.

  2. Check if there are any conflicting JavaScript on your website. Multiple scripts can conflict with each other and cause issues like the add to cart button not working.

  3. Check if the add to cart button is being triggered by an event that is not working. This can happen if you have customized the add to cart button or using a theme with many custom elements.

3

My add to cart is not working as well. I have had several sales today.

URL is craftedoflight.com

no changes have been made recently

4

Hi**, I am experiencing the same problem. My add to cart is not working and this happened after I added WhatsApp button on my website. Please help. https://www.8b4145-39.myshopify.com**