Renaming your store handle
Your handle is the short name in your storefront URL. Renames are handled by support: message us via the contact-us article with your store handle and the new name you want.
Treat a rename as a serious decision: existing buyers reach the old URL via a permanent 301 redirect, and the old handle is locked for 12 months so nobody else can claim it right away — but update any links you have printed or pinned.
Cooldown: renames are allowed at most once every 90 days.
Best practice: rename only once — pick a name you can live with.