You've come to the right place, Keely.

It'll be a pleasure to help you change the category of your inventory item. Here's how:

1. Click Sales on the left pane.
2. Select Products and Services.
3. Locate the product or service you want to categorise.
4. Select Edit from the Action column.
5. Select the Category dropdown, then select one that fits this item.
6. Select Save and close.

Here's an article for future reference: Group your products and services into different categories.

Let me know if you have other questions about products or categories in QuickBooks Online.