diff --git a/source/includes/v3/_products.md b/source/includes/v3/_products.md
index 27b234f5..2b41a874 100644
--- a/source/includes/v3/_products.md
+++ b/source/includes/v3/_products.md
@@ -16,7 +16,8 @@ This section lists all API endpoints that can be used to create, edit or otherwi
 | `downloadable`                  | boolean | If the product is downloadable or not. Downloadable products give access to a file upon purchase                                                                                                                                                                 |
 | `virtual`                       | boolean | If the product is virtual or not. Virtual products are intangible and aren't shipped                                                                                                                                                                             |
 | `permalink`                     | string  | Product URL (post permalink) <i class="label label-info">read-only</i>                                                                                                                                                                                           |
-| `sku`                           | string  | SKU refers to a Stock-keeping unit, a unique identifier for each distinct product and service that can be purchased                                                                                                                                              |
+| `sku`                           | string  | SKU refers to a Stock-keeping unit, a unique identifier for each distinct product and service that can be purchased
+| `global_unique_id`              | string  | GTIN, UPC, EAN or ISBN - a unique identifier for each distinct product and service that can be purchased|
 | `price`                         | string  | Current product price. This is setted from `regular_price` and `sale_price` <i class="label label-info">read-only</i>                                                                                                                                            |
 | `regular_price`                 | string  | Product regular price                                                                                                                                                                                                                                            |
 | `sale_price`                    | string  | Product sale price                                                                                                                                                                                                                                               |
@@ -139,7 +140,8 @@ This section lists all API endpoints that can be used to create, edit or otherwi
 | `downloadable`          | boolean | If the variation is downloadable or not. Downloadable variations give access to a file upon purchase                                                                                                   |
 | `virtual`               | boolean | If the variation is virtual or not. Virtual variations are intangible and aren't shipped                                                                                                               |
 | `permalink`             | string  | Variation URL (post permalink) <i class="label label-info">read-only</i>                                                                                                                               |
-| `sku`                   | string  | SKU refers to a Stock-keeping unit, a unique identifier for each distinct product and service that can be purchased                                                                                    |
+| `sku`                   | string  | SKU refers to a Stock-keeping unit, a unique identifier for each distinct product and service that can be purchased     
+| `global_unique_id`      | string  | GTIN, UPC, EAN or ISBN - a unique identifier for each distinct product and service that can be purchased     
 | `price`                 | string  | Current variation price. This is setted from `regular_price` and `sale_price` <i class="label label-info">read-only</i>                                                                                |
 | `regular_price`         | string  | Variation regular price                                                                                                                                                                                |
 | `sale_price`            | string  | Variation sale price                                                                                                                                                                                   |