В Commerce Kickstarter уведомления шлется правилом по шаблону через модуль Messages, нужно посмотреть его настройки и шаблоны:

http://www.drupalcommerce.org/commerce-kickstart-2/rich-email-notifications

В обычном Commerce уведомление шлется простым правилом (см. скриншот), вот его экспорт:

{ "commerce_checkout_order_email" : {
"LABEL" : "Send an order notification e-mail",
"PLUGIN" : "reaction rule",
"WEIGHT" : "4",
"TAGS" : [ "Commerce Checkout" ],
"REQUIRES" : [ "rules", "commerce_checkout" ],
"ON" : [ "commerce_checkout_complete" ],
"DO" : [
{ "mail" : {
"to" : [ "commerce-order:mail" ],
"subject" : "Order [commerce-order:order-number] at [site:name]",
"message" : "Thanks for your order [commerce-order:order-number] at [site:name].\n\nIf this is your first order with us, you will receive a separate e-mail with login instructions. You can view your order history with us at any time by logging into our website at:\n\n[site:login-url]\n\nYou can find the status of your current order at:\n\n[commerce-order:customer-url]\n\nPlease contact us if you have any questions about your order.",
"from" : ""
}
}
]
}
}