Thanks for reaching out to us, micromastersusa.
I know how important it is managing your inventory for your business.
Currently, the option to completely delete inventory items still isn't available in QuickBooks
As an alternative, QuickBooks Online has a Batch action feature that allows you to make your items inactive. Let me guide you through the steps:
1. Select the Gear icon.
2. Click Products and Services.
3. Mark the items you'd like to remove.
4. Click the Batch actions drop-down.
5. Choose Make inactive.
6. Select Yes to complete the action.
To let you restore the deleted products or service items. Just checkout this article for the complete steps: How to edit, delete, and restore list elements
You can also check this article on how you can set up an advanced inventory
Feel free to post any other questions you have below. The Community and I are always here to help you out. Take care!