How do I make a journal entry to correct the opening bank balance on reconciliation.

Hello there, uneco419. I'm here to provide some help regarding reconciliation. 

When reconciling in QuickBooks Online (QBO), it's crucial to have the bank statement at hand for accuracy. If you accidentally deleted a check, you can create a new one, then enter the original check's date and information to ensure it's included in the reconciliation process. This will help maintain the accuracy of your financial records. 

Here's how: 

1. Go to the +New icon located in the upper left corner. 
2. Choose Check. 
3. Fill out the necessary information.
4. Ensure that the date is accurate. 
5. Once done, press Save and close. 

On the other hand, since you mentioned that you'd want to create a journal entry, it's best to consult your accountant for more accurate results. Kindly follow these steps:

1. Go to the +New icon located in the upper left corner. 
2. Choose Journal Entry.
3. Fill out the necessary details. 
4. Once done, press Save and Close. 

For more information regarding reconciliation, visit this website: Enter and manage opening balances in QuickBooks Online. 

Furthermore, you can use this article if you have discrepancies at the end of your reconciliation: Fix issues at the end of a reconciliation in QuickBooks Online. 

Should you need anything, feel free to leave a comment below for us to be notified. We're still here to provide the assistance that you need.