We have two options that we can choose from when handling your reconciled check with incorrect details, loupa. I'm here to lay them out for you.

The first option is to undo the previous reconciliations. Please know that we can't undo multiple reconciliations at once. That said, we'll have to do it manually until we reach the period to which the check belongs.

To do so, navigate to the Reconciliation page from the Banking menu and then select Undo Previous Reconciliation. A notification will prompt after the selection advising you to back up your company file. It's essential to store a copy of your data before proceeding for safekeeping.

Once you've finished the process, you can delete and recreate the check or locate and modify it accordingly. Following that, reconcile the previously unreconciled months.

If you want to edit the check, here's how:

1. From the Banking page, select Write Checks.
2. Click the Find button and enter the accurate check detail on the Find Checks prompt.
3. Hit Find and double-click the check.
4. Modify the check information accurately, and once done, tick Save & Close.
5. Reconcile the previously unreconciled months till the present data.

On the other hand, please refer to the steps below if you want to delete and recreate the check instead:

1. From the Banking page, select Write Checks.
2. Click the Find button and enter the accurate check detail on the Find Checks prompt.
3. Hit Find and double-click the check.
4. Tick the X Delete option and then OK to confirm the deletion. Then, recreate the check.
5. Reconcile the previously unreconciled months till the present data.

Meanwhile, the second option is to do a mini-reconciliation. Its process requires adjustment and is risky as it affects your records from previous and following months. For this, I recommend seeking an accounting professional to guide you thoroughly.

I'm also adding this article that provides insights on how to get a complete view of your previous reconciliation in the system: Get reports for previous reconciliations in QuickBooks Desktop.

The Community team is here for you 24/7. With that, you can always post another query if you have any about your reconciliation data, reports, or other menus and features in QuickBooks. We'll ensure to provide the best assistance.