Magento 2 installation with 2 storefronts.

Requirements:

* For storefront 1 The product stock is hourly updated through a csv file which is uploaded to the server.

A module is implemented to update the stock for all the products. The only thing that needs to be implemented now is the message related to the stock status of the selected simple product.

On the product page, when the simple product is selected, underneath the combobox amount a message needs to be shown.

* For storefront 2

The products for this storefront are not dependant on the stock. But since the Backend is running on the same installation as storefront 1, a stock value has to be set.

For this storefront I would like to have a csv generated for all products with the status Enabled. The csv needs to contain 2 properties of each enabled product:

1. Articlenumber

2 Stock (default value for each product is 100.000)