You can check your transactions without receipts by going to the Sales and Expenses tab, Sarah. Currently, QuickBooks Online (QBO) doesn't offer a specific report for transactions without attachments.
In the meantime, you can follow these steps to view them:
For Sales:
- Navigate to Sales, then All sales.
- Click the Gear icon beside Action.
- Tick the Attachments box.
- Hit Save as default.

For Expenses:
- Go to Expenses.
- Above Action, select the Gear icon.
- Check the Attachments box.

Please note that the fields that are blank or have zero value represent transactions without attachments.
Additionally, you can learn to modify your financial reports to suit your business needs by following these articles:
We're committed to helping you manage and review your transactions efficiently. If you still have any follow-up questions regarding reports or other QuickBooks concerns, please respond below for quick assistance.