Hi there, @lflaherty.
Welcome back to the Community page. Yes, you can search for an invoice by number, and I'm here to show you guide you through it.
You can use the default Classic Search feature to search for an invoice by number or use the Transactions Search feature to search for it.
Here's how to search for an invoice by number through the Transaction Search/Advance Search:
- Click the Magnifying icon on the top-right part of the page.
- Select the Go to transactions text button.
- Enter the invoice number in the Reference number field and press Enter on your keyboard.
You can check this article for more details about the Advanced Search feature: Search for transactions in QuickBooks Online.
After that, you can also consider finding, reviewing, and editing your transactions in the account registers.
Let me know if you need additional assistance with any concerns you have.