Cart or checkout link loses its items or parameters

A cart permalink or add-to-cart link redirected without the cart contents or tracking parameters.

Why it matters

Shoppers from the ad land on an empty cart, or the purchase cannot be attributed.

How to fix it

1. Check the cart permalink format (/cart/<variant_id>:<qty>) and that the variant ids still exist.
2. Make sure tracking parameters are on the permalink itself, not added before a redirect that drops them.

After a fix, TagGap confirms it on the next comparison run. Questions: support@taggap.com.