There are two ways of entering inventory count:

1. You can enter the initial number in Property Management / Inventory Manager

Note that the "adjustment" is the total inventory count, not the actual adjusted quantity. 

2. If your items are set to be counted during the Shift Switch then at the end of the shift you will be prompted to verify if the number of items in the stock agrees with the system count. You may enter the new counts at this moment too and leave the explanation why the number of system count and the physical count differs: