Thanks for joining the thread, @AN16.

I'm happy to provide some info on deleting transactions from reconciles in QuickBooks Online.

By changing or deleting a transaction in a reconciliation, you can unbalance your accounts and change the ending balance. This will also affect the beginning balance for your next reconciliation. However, you can unreconcile the one transaction that is registered incorrectly, but you'll want to make sure it doesn't affect your beginning and ending balances. The steps below will show you how:

1. Navigate to the Accounting tab and pick Chart of Accounts.
2. Find the account and press View register.
3. Select the transaction you want to unreconcile.
4. In the check column, click the R until the box is blank.

       5. Hit Save.

Now your transaction can be deleted since it is no longer attached to the reconciled account. You can also check out this article for more information: Undo and remove transactions from reconciles.

I'm only a post away should you have any other questions or concerns. Enjoy the rest of your day!