The new Product Mash tool now includes a "Price and Quantity" update
within the "Amazon Seller Central" feed.
This enables you to upload update feeds, to Amazon in a simple
format including SKU, Price and Quantity.
This is useful for keeping stock levels up to date, on Amazon, as well
as introducing price changes.
The feed creates a .txt file and this could also be used with other
listings/portals if the file is suitable.