This option will run a check on all stock items. 

This process may take some time.

To do a mass check on stock items: 

1.On the Action ribbon, select Stock items.

2.Select "Mass check" option on the context menu. 

3.The stock item form will be automatically opened and closed for each stock item. 

4.When the mass check process is finished, a confirmation message will be displayed:

"Check finished:"

5.Click OK.