This sort of functionality would fall under a much more complex stock management system than KashFlow currently holds and will probably ever contain.
The solution to this would be for us to integrate with a third party app that handles stock management in order to handle this sort of request.
There are products within the IRIS range that will handle things like this, they sit on our enterprise level and as such are slightly more complex to use than KashFlow.
The KashFlow user community is currently closed whilst we complete work on our new site, KashFlow Canvass. We will launch our new community this week, watch this space!
KashFlow Product Team