How do I edit the name of a line item or add a new line item?

Hello there, donnaleemarsh.

Let me guide you on how to edit a line item or add new ones in QuickBooks Online (QBO). You may follow these steps on how you can edit a line item:
 

1. Go to Settings and then select Products & services.
2. Find the non-inventory or service item you want to change.
3. Select Edit in the Action column.
4. Select Change type.
5. Select Non-inventory, Service, or Inventory.
6. When you're done, select Save and Close.

 Here's how you can add new line item: 1. Go to Settings and then select Products & services.
 2. Click New.
 3. Select Non-inventory, Services, or Inventory.
 4. Fill in the details.
 5. Save and Close. I've included this article to provide you with additional context : Change product and service item types in QuickBooks Online 

Moreover, it's also important to consider that all previous sales and expense forms will be automatically updated once line items under Product and Services are edited.

If you want to learn more about how to use reports to get helpful insights on your sales and inventory status, I've included this article for your reference: Use reports to see your sales and inventory status

 If there are any additional inquiries about sales inventory or any other QBO concerns you'd like to address, please leave a comment in the Community. Have a good one!