Usually every end of month, your store will do stock opname to compare stock on hand with stock in system. You can use this feature to do adjustment. follow these step below
I. Adjust Stock differences
Step 1. Select New on Adjustment menu
Step 2. Make sure the selected config Adjust Differences
Step 3. You can fill in any product that you want to customize. You can click on the quick key on the left or use the search product by name / code
Step 4. fill the name of the product which you want to be adjusted, and the quantity. Click 'Ok', then 'Process' in the 'Inventory Adjustment Form'
*note: if you want to reduce the quantity, just put a minus on the quantity
II. Update Stock Inventory
Step 1. Open Adjustment menu, click New to add new adjustment
Step 2. Change the configuration selected Update Inventory
* Note: Used to update inventory, the function for each input quantity of stock will be exchanged with the previous stock inventory.