The question is simple.
Using "Import Dataflow" to update stock quantity, can i use a csv file where are presents only the product I want to update?
I mean I have 300 products in my store.
If I want to update stock quantity only of 50 of them, can I use a csv with that 50 products information? Or I have anyway use a 300 lines file?
I can't experiment this cause the site in running, so if I loose all the products it will be a mess for me.
Thank u for helping