Hi everyone!
Until a few days ago easy populate was working completely fine on my site. But I've had to do something a bit complicated I guess....
My supplier gives me data feeds for stock levels which are I guess for osCommerce, not Zen cart. So whenever I download a new one I have to change it to make it compatible with easy populate.
This feed contains the model number, product name and stock level.

The supplier sells around 3000 products and I only sell 2500 of those, so what I thought of was, I'll add a category field to the stock feed with a new category for all the products. Then after updating the database I delete the new category and am left with updated data for the products I wish to sell.

Now I noticed that I was having problems with: Descriptions and manufacturer data. All of which either copied previous item's data or were made completely blank.

Luckily I had a back up so I fixed the problem but I have no idea how to update my stock levels without messing everything else up!

As far as I can tell the problem is caused by: My supplier's feed does not contain descriptions or manufacturers. And even if it did I would much rather rewrite them and use my own so I do not want to update them with my supplier's data!
Because my supplier has more products in the feed than what I actually resell, I cannot just add the stock levels column into my own easy populate file and assume it matches.

Is there anyone else out there in a similar situation?