Cleaner errors when picking your storefront subdomain
When you set or change your storefront subdomain (the your-store-name part of your-store-name.whatsmenu.page), the form now catches problems earlier — invalid characters, reserved words, or names already taken — and shows a clear message explaining what to fix.
Previously some invalid subdomains slipped through and only failed later, sometimes mid-checkout for your customers. The tighter validation prevents that and keeps your storefront URL stable.
No action needed if your existing subdomain works — only new changes go through the new checks.