Error in cart

Shopify Discussion
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Topic summary

A Shopify store owner is experiencing a cart error after adding custom fields to their cart page. When customers fill out these custom fields, they receive an error message: “There was an error while updating your cart. Please try again.”

Key Details:

  • Custom fields were recently added to the cart page
  • Error occurs specifically when customers complete these fields
  • Shop URL and access key provided for troubleshooting

Status: Issue remains unresolved with no responses yet. The store owner is seeking guidance on how to fix this cart update error.

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

Hi there,

I added some custom fields to my cart page. If a customer fills these fields, this error appears:
“There was an error while updating your cart. Please try again.”

How can I fix this error?

Shop: https://71c37e-65.myshopify.com/

Key: sierbestrating

Best,

Marlou