You can change the category and distribution account of the sales invoice by going to the products and services, Sharon.
You can follow the steps below:
- Go to the Gear icon, and select Products and Services.
- Locate the item that you want to modify, and then click Edit.
- From the Category dropdown, you can either add or choose the category that you want to use.
- Click Save and close.
Once done, we can go ahead and change the distribution account of your items. Please note that you can only modify an account one item at a time.
Here's how:
- From the Products and Services section, find the item and click Edit.
- Select the Income account dropdown, then choose the account you want to use.
- If the account isn't visible, ensure that its detail type is set as Sales of Product Income.
- Once done, click on Save and close.



Additionally, I'll share this case in case you want to set up a sales tax category for your products and services in QBO: Add a sales tax category to products and services.
Please know that you can always revisit this thread if you've other questions regarding sales invoices. We're always here to help.