Hello everyone,

I am looking for a concurrent stock take algorithm for warehouse
management. Basically, I want the user of the sales software to be
able to check if a product is in stock or not. If the item is in
stock, then he adds to the shopping list, and will keep that until he
processes the sale. The other users should be able to see this as
well. That is, they should see (the total number of items - number of
items taken). If the user does not process the sale or an error
occurrs, then the stock should increase by number of items taken.

Does anyone have a suggestion on how to accomplish this?

Thanks in advance.

Fidel.