To do this task
Go to the Banking menu and click Reconcile.
In the Reconcile window, select the incorrect transaction.
Click Go To to see the original transaction.
If the transaction is editable in the register, correct the error.
Save the change.
Return to the Reconcile window.
Mark the corrected transaction as cleared.
If you go to a transaction and find you can't change it, you'll need to find out where the amount of the
transaction comes from before you can edit it.
To change the amount of a bill payment you'll need to find the total amount of bills and subtract any discounts you may have applied. Look through all
the bills that make up a particular payment—chances are one of those bills was entered into QuickBooks incorrectly. It might be easiest to delete the bill payment, then change any incorrect bills, and then recreate the bill payment from the Pay Bills window.
To change the amount of a deposit that includes multiple lines (a parent entry) you'll need to find the total of all the deposited items including transfers, payments and sales receipts, and you'll need to
account for items added directly to the deposit transactions. Again, somewhere along the way one of these amounts was probably entered into QuickBooks incorrectly. It might be easiest to delete the deposit, then make any necessary changes to payments, sales receipts, etc. and then recreate the deposit from scratch.
Troubleshoot reconciliation problems
Find and fix reconciliation differences
Undo a previous reconciliation