{ "rules_notify_when_reorder_threshold_re" : {
    "LABEL" : "Notify when reorder threshold reached",
    "PLUGIN" : "reaction rule",
    "ACTIVE" : false,
    "REQUIRES" : [ "rules", "entity" ],
    "ON" : [ "commerce_product_update" ],
    "IF" : [
      { "entity_has_field" : { "entity" : [ "commerce-product" ], "field" : "commerce_stock" } },
      { "entity_has_field" : { "entity" : [ "commerce-product" ], "field" : "field_reorder_threshold" } },
      { "entity_has_field" : {
          "entity" : [ "commerce-product-unchanged" ],
          "field" : "commerce_stock"
        }
      },
      { "AND" : [
          { "data_is" : {
              "data" : [ "commerce-product:commerce-stock" ],
              "op" : "\u003c",
              "value" : [ "commerce-product:field-reorder-threshold" ]
            }
          },
          { "NOT data_is" : {
              "data" : [ "commerce-product-unchanged:commerce-stock" ],
              "op" : "\u003c",
              "value" : [ "commerce-product:field-reorder-threshold" ]
            }
          }
        ]
      }
    ],
    "DO" : [
      { "drupal_message" : { "message" : "Your product [commerce-product:title] has stock of [commerce-product:commerce-stock] which is below the reorder threshold of [commerce-product:field-reorder-threshold]. Order some more now!" } }
    ]
  }
}