Hello, bjacobs1, it's great to have you back in the Community! I understand how vital it is to keep your entries organized for the accuracy of your financial data. Luckily making mistakes when entering transaction is something that is simple to fix. I'm here to assist you in deleting the duplicate transactions, so you can smoothly proceed with the reconciliation process.
Yes, you can certainly delete items that were created by mistake. Keep in mind that doing so will permanently remove them from your books, meaning they won’t show up in any reports or accounts. While you can view some details in the audit log, the entire transaction cannot be recovered.
Since you're certain that you don't need a record of those entries, remove them by following these steps:
- Go to Sales, then select All sales.
- Find the sales transaction you want to delete.
- In the Action column, hit the dropdown, and pick Delete.
- Confirm by clicking the Delete button.

For a comprehensive guide on the task mentioned above, please see this article: Void or delete transactions in QuickBooks Online.
Once you have everything in place, reconcile your account once more.
Additionally, QuickBooks automatically creates a reconciliation report every time you complete reconciling. If you're interested in learning more about this, feel free to check out this helpful reference: How do I view, print, or export a reconciliation report?
With this information, I’m confident you’ll be able to successfully reconcile your account. If you have any additional questions or further clarification about the process, please don’t hesitate to click the Reply button. I’m here to assist you whenever you need help. Wishing you a fantastic day, bjacobs1!