Hey, @heavchan .
Thanks for joining the thread.
Redirecting old URLs is different from changing the product handles, so the solution shared above would not apply to you. If you’d like to redirect URLs, then we’ve got a guide on that here: Creating and managing URL redirects. However, it’s important to note that there isn’t a way to redirect URLs in bulk.
If you have any other questions, then don’t hesitate to let us know.