You can adjust the inventory quantity of a product by entering an Inventory Quantity Adjustment, Rokey. I'll guide you on how to complete this process below.
When the inventory quantity of an item is zero, you can adjust the quantity manually to reflect the actual stock without making a purchase or sale. To do this, here's how:
- Go to the + New button.
- Select Inventory qty adjustment. (Note: If you want to adjust multiple items’ quantities, select Batch actions in Products and services.)
- Enter the Adjustment date.
- In the Inventory adjustment account dropdown, select the appropriate account.
- Enter either a new quantity (0).
- In the Memo field, enter the details about the adjustment.
- Select Save and close.

For more details about adjusting inventory quantity in QuickBooks Online (QBO), please see this article: Adjust inventory quantity on hand in QuickBooks Online.
Additionally, would you like to create notifications for items that are low or out of stock to keep track of your inventory? If yes, you can check out this article to guide you on how: Stock alerts in QuickBooks Online.
Leave a comment below if you have additional questions about the inventory quantity adjustment procedure in QBO. We'll be willing to help. Thank you, and have a good one.