I appreciate your time reaching out to us, @amiinpetroleumg-. I'd be happy to help you make inventory adjustments in QuickBooks Online (QBO).
Adjusting your inventory will modify the balance of your inventory assets. With this, QuickBooks automatically update appropriate adjustments to your accounts.
Let me walk you through the steps on how you enter an inventory adjustment:
Click the +New button, and select Inventory Qty Adjustment.
Enter the Adjustment Date.
In the Inventory adjustment account drop-down, select the appropriate account.
Select the products in the Product field.
For each item, enter either a new quantity or a change in quantity.
In the Memo field, enter the details about the adjustment.