I do business with other companies selling items they have in stock, and i don´t and visa versa.

It would be great if there were a posibility to add a mark with a product that it "belongs" to another company. sort of like being in stock remotely. The customer won´t notice anything, they just shop like they used to.

If there is items in the cart that is from different supliers then it should be possible that those "partner" get a direct orderconfirm containing only their items.

I have drawn a scematic here.

Remote stock partner examble

The advantage is, that you don´t have to buy a big stock, and you dont have to order manually by your suplier of that specific product. They get their own orderconfirmation from the website, and ship out directly to the customer, and then simply bill you for that specific product :-)

I hope you can see what i mean :-)

To do this right really requires a multi-warehouse / multi-store capability that has been suggested (and even implemented as a 3rd party code branch)

Handling the confirms are very easy (use Events). However, there are other considerations that make this tricky
a) in what field to store the vendor's part #
b) same product carried by multiple distributors / warehouses
c) maintaining/synchronize accurate StockQuantity  (e.g. how do you know if distributor still has product in stock)
d) calculating shipping rates from multiple source locations (nopTools Shipping Director can do this)

If you wanted to "hack" this with the current nopC, you could probably do with out too much effort (except b).   E.g. Use Affiliate table for warehouses, Product.AdminComment for AffiliateId, Productvariant.GTIN for Vendor's part #.
I've been considering similar for a client, because I'm afraid to make major coding changes in core nopC that would then not allow me to easily upgrade to new versions.

To automate it completely would be great. Im sure that will take a lot of hard work.

If you have some steady suppliers that has a big stock, then it should be pretty straight forward.

Like the possibility to add manufactures to a site, you could add a suppliers list, with all the relewant data, maybe even a direct connection to his database for the relevant products. That way you could read his stock, i know thats a bit tricky, since most of the don´t know anytrhing about programming. The possiblity could be made however.

As soon as the supplierslist is made. Then you simply have to add the supplier to a specific product.

On checkout the appropiate data should then sent to the dif. suppliers. Shipping could be integrated in the price, so you donn´t bill a customer for more than one shipping. Even if he adds many items there would be many items to share the cost of shipping.

You could have many more items in your shop without having them in stock. You simply has to trust your supplier, the ones that don´t have a large stock, you can have them in stock. If you know what i meen.

It´s much easier to explain in your native tongue. :-)

Please vote for warehouse support.