You will want to perform inventory counts during a low-point of your inventory activity. Perhaps during a slow season, or on a weekend. During the inventory counting process, items cannot be transferred, moved in to, or out of inventory. The process must be completed without any interruption.
Once the count has been completed, the items that were counted need to be matched up against your system by an independent person. An inventory software package can do this process for you automatically. Any discrepancies in your inventory count should be investigated by a counting team, preferably a different team than the one that did the counting. For instance, the team that counted items in Zone A can check discrepancies in Zone B, and Zone B’s team can recount items in Zone A.
Once all discrepancies are ironed out your physical inventory is complete and you can resume your daily processes. Make sure to record any adjustments you make to your inventory for accounting purposes