Checkout payments are failing with the error: “Your payment couldn’t be processed because your order total has changed.” Several merchants report this began recently, coinciding with installing the Shopify Bundles app; removing the app did not resolve it.
Observed behavior:
One merchant could complete purchases days earlier; now fails across multiple browsers/users (Dawn theme, store in design mode).
Another can purchase non‑bundle items but not bundles; others confirm failures when the cart contains only bundles.
One mention of an issue alongside “expand operation cart transformation,” suggesting a checkout/cart transformation interaction.
Impact: Customers cannot complete bundled orders; merchants report lost sales.
Shopify response: Staff acknowledge it may be a settings/checkout error and say the issue is being investigated. Because account access is required, affected merchants are directed to the Help Center to create support tickets via the Virtual Assistant.
Status: No workaround or fix posted publicly yet. The discussion remains open, with at least one ticket submitted and merchants awaiting updates. Key open questions: root cause (Bundles app vs. checkout/cart transformations) and timeline for a resolution.
Summarized with AI on December 17.
AI used: gpt-5.
Just a few days ago I started experiencing problems with the checkout
" Your payment couldn’t be processed because your order total has changed. Check your order total and try again.
My store is still in design mode, but I was able to complete 4 purchases just a few days ago. The only difference is that I just added Shopify Bundle App and created my first bundle. Since this app was not working correctly I removed it, but it didn’t solve the problem. I also tried using a different login and password but it gives me the same problem. I see that there are more people with this same problem, which it looks like just started recently.
I am using the Dawn theme, the purchase was made via 2 different browsers and 3 different users.
Hi, @jovantperic !
Thanks for reaching out in our Community Forums and for sharing your concern, I’d be happy to help.
It is possible that the issue you are experiencing is the result of an error in your store’s settings or error in the checkout. I’ve reached out to my team for more information, and they have advised they will be investigating it further. In this case, we’ll need to access your account in order to take a closer look. While we’re not able to provide account-specific support via Community Forums at this time, we’d be happy to continue assisting you through our Help Center. In order to access our live support, you can ask the Virtual Shopify Assistant to contact support. From there, it’ll guide you with your next steps on how to connect with a team member.
We’d love to look into the issue you’re experiencing as well. As previously advised by Mac, could you please visit our Help Center and chat with our AI assistant to create a support ticket? One of our support advisors will be happy to assist you further!
I’m receiving the same error and so are my customers. We are losing sales because of this. This needs to be fixed ASAP. I opened up a ticket and will let you guys know if there is anything that comes of it.
We will need to access your account to gather more information. However, please note that we are unable to provide account-specific support through the Community Forums. But don’t worry! We would be more than happy to continue assisting you through our Help Center. To access our live support, you can ask the Virtual Shopify Assistant to “contact support.” It will guide you on the next steps to connect with a team member who can take a closer look.
