On Checkout Order Confirmation page "Email me with news and offers" checkbox doesn't work

Topic summary

Issue: On the checkout order confirmation page, the “Email me with news and offers” checkbox cannot be selected. Attempts to tick it result in an error returned by the Shopify backend, as shown in the browser Developer Console (network tab).

Impact: Customers are unable to opt in to marketing emails at the post-purchase confirmation step.

Evidence: The poster shared a YouTube video (https://youtu.be/WELW52FV1ls) demonstrating the problem.

Technical context: The Developer Console is the browser’s built-in tool for inspecting network requests; the observed backend error suggests the opt-in request fails server-side rather than being purely a front-end UI issue.

Status: The thread is seeking a solution and has no replies or fixes provided yet. Open question: whether this is a Shopify platform bug, configuration issue, or requires a theme/app adjustment; no guidance or action steps have been posted so far.

Summarized with AI on December 23. AI used: gpt-5.

After a customer makes an order on the checkout confirmation page, there is a checkbox labeled “Email me with news and offers” that cannot be ticked. The Dev Console network tab clearly shows that the Shopify backend returns an error. Is there any solution to this? Thank you

Anyone?