The response for a v4 token has changed slightly.
You can now store an external_id for the product traits of Division, Silhouette, and Fabrication.
You can now add custom tags to your products.
New parameter "dec_pending" to make JOOR's pending quantities deducted from the available to sell received in the API call.
Store your own identifier value for products, using product_identifier.
Update the order status (e.g. Pending, Notes, Approved) on your existing orders.
Create a draft order that can be viewed in the web cart page.
View the color image and swatch details in the SKU response.
Add a new line item and quantities to your order.
Added image information to the product API.