Recently changed some codes on COA to better reflect their nature, but now their reports come up empty. When I go into individual invoices, they have been used.Any ideas?

Hi there, Sam.

I'm here to help you ensure that all the necessary information is populating in your QuickBooks Online reports.

Changing account numbers or codes in the Chart of Accounts won't affect past transactions linked to the account. It's possible that the products or services have been linked with a different account, which is why they aren't showing on the reports.

Let's make sure that your items are associated to the right income account. Here's how:

1. On the left navigation panel, hover on Sales.
2. Click Products & services.
3. Locate the item. Then, press Edit on the Action column.
4. Confirm that the income account associated is the correct one.
5. If not, select the appropriate income account on the dropdown.
6. Tick Also update this account in historical transactions.
7. Hit Save and close.

After completing these steps, kindly run your desired reports again. This time, the reports should be populated with the correct data.

If you need more information, here are some helpful articles:

Use account numbers in your chart of accounts in QuickBooks Online
Run reports in QuickBooks Online

You can also customise reports in QuickBooks to get the most out of your financial reports.

If you have any other questions about the Chart of Accounts in QuickBooks, please don't hesitate comment below. I'll be around to assist you again.