Hello, The 'available' is what you have in stock The 'virtual' is what you will have when all planned move will be done.

In OpenERP they are not stored value, but they are computed as the sum of the stock move.

If you want to change the 'available', you can create an inventory. Set the amount you realy have in stock. OpenERP will generate the corresponding move for you.

thanks for the anwsers stock availible can be modified by phisical invetory but I want to update the virtual values

hello use warehouse-->traceability-->stock move to send produce to stock

You have to update the inventory either in the product form or by creating a phisical inventory