Transaction Failed error when attempting to go to checkout

Technical Q&A
, ,

Topic summary

A user is experiencing an intermittent “Transaction Failed” error when clicking the “Buy Now” button on their Shopify product page. The issue occurs more frequently in Safari but has also been reproduced in Chrome by Shopify support.

Current Status:

  • The error is difficult to reproduce consistently
  • APIs are confirmed to be functioning correctly
  • The issue appears to be related to timing—the popup may trigger when the customer’s click event hasn’t been fully received yet

Recommended Action:
Contact the theme developer to investigate and improve the code handling click events. The problem likely stems from the theme’s implementation rather than Shopify’s core functionality.

Summarized with AI on November 2. AI used: claude-sonnet-4-5-20250929.
1

Hi Community,

When I click the “Buy Now” button on the product page, I sometimes see this error pop up. It’s intermittent and hard to reproduce consistently. I see it more often in Safari, but I did reach out to Shopify support and they were also able to reproduce it in Chrome as well.

Transaction failed Jan25.png
Transaction failed Jan25.png2442×1338 309 KB

While I am still waiting to hear back, I was wondering you might have any insights into why this might be happening?

https://www.homeboost.com/

Thanks!

Marianna

2

Hi Marianna_YTTG

I checked the APIs, and they are working fine (https://prnt.sc/HonydDYs4XjJ). The popup might appear when the click event from the customer has not been received yet. You should report this to the theme developer so that the issue can be identified and the code can be improved.

Best,
Esther