Drupal Commerce Rules Component to send an email to the customer

rules_send_message_to_customer

{ "rules_send_message_to_customer" : {
    "LABEL" : "Send message to customer",
    "PLUGIN" : "rule set",
    "REQUIRES" : [ "rules" ],
    "USES VARIABLES" : {
      "order" : { "label" : "Order", "type" : "commerce_order" },
      "subject" : { "label" : "Subject", "type" : "text" },
      "body" : { "label" : "Body", "type" : "text" }
    },
    "RULES" : [
      { "RULE" : {
          "PROVIDE" : { "entity_fetched" : { "customer_billing_profile" : "Customer billing profile" } },
          "IF" : [
            { "entity_has_field" : { "entity" : [ "order" ], "field" : "commerce_customer_billing" } }
          ],
          "DO" : [
            { "entity_fetch" : {
                "USING" : {
                  "type" : "commerce_customer_profile",
                  "id" : [ "order:commerce-customer-billing:profile-id" ]
                },
                "PROVIDE" : { "entity_fetched" : { "customer_billing_profile" : "Customer billing profile" } }
              }
            }
          ],
          "LABEL" : "Fetch the billing profile"
        }
      },
      { "RULE" : {
          "IF" : [
            { "entity_has_field" : {
                "entity" : [ "customer-billing-profile" ],
                "field" : "commerce_customer_address"
              }
            }
          ],
          "DO" : [
            { "mail" : {
                "to" : [ "order:mail" ],
                "subject" : "[STORE NAME] Order update: [order:order-number] - [subject:value]",
                "message" : "Hello [customer-billing-profile:commerce-customer-address:name-line],\u000D\u000A\u000D\u000AOur team has new information about your order #[order:order-number].\u000D\u000A\u000D\u000A[body:value]\u000D\u000A\u000D\u000AThanks again for shopping with STORE NAME, and remember if you need additional information or assistance with your order, you can \u003Ca href=\u0022[site:url]contact\u002Fcontact-us\u0022\u003Econtact us online\u003C\u002Fa\u003E or phone us at (###) ###-####\u000D\u000A\u000D\u000AThanks!\u000D\u000A\u000D\u000A--The STORE NAME Team",
                "language" : [ "" ]
              }
            }
          ],
          "LABEL" : "Send the email"
        }
      }
    ]
  }
}