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When an item in the sale requires a guest to be attached and it has not yet been added by the user then a notification message pops up telling the user to attach a guest when the user tries to advance to the next page from Checkout1.aspx. In addition, the notification message pops up if a user tries to finalize a sale from either Checkout.aspx or Checkout4.aspx and a modifier still requires a guest to be attached. If the key is not set in the siteconfig.config file, then a default message is displayed, “Required Guest missing, please select guest for modifier.”

GuestNotSelectedItemMessage = Please add guests to all modifiers in the cart where \'Guest required!\' is noted!