Is your storefront set up? Be sure to have a cover photo, profile picture, description, and business contact information featured on your market store! (My Store > Store > Store Settings)
Do all vendors in your market have visibility turned “On”? (My Store > Suppliers > Visibility)
Is Automatic Customer Approval enabled? (Edit Account > Settings > Automatic Customer Approval is on.) This will ensure that new visitors to your store can browse items and add to their cart before signing in or registering a new account.