We are trying to undo a Credit Card Reconciliation because of an error, but system won't let us, neither the administrator and\or the accountant.

Hi there, @SJAD. I'm here to help ensure that you can undo reconciliation seamlessly.

In QuickBooks, your accountant has the option to undo your reconciliation. They have a tool that allows them to undo the entire reconciliation. You can share these steps with your accountant to undo the reconciliation:

Here's how:

1. Let your accountant sign in to their QBO Accountant account.
2. Open the client's QuickBooks Online company.
3. Go to the Accounting menu, then select Reconcile.
4. Select History by account.
5. Choose the account you want to reconcile and the date range from the drop-down.
6. Find the reconciliation on the list.
7. Open the Reconciliation Report by clicking the View report.
8. Review any discrepancies and changes your client wants to make.
9. Once you’re ready, select Undo from the drop-down under the Action column.
10. Click Yes, then Undo to confirm.

For more guidance, see this article: Undo a client’s reconciliation in QuickBooks Online Accountant.

If you prefer to do it by yourself, follow these instructions to undo reconciled transactions one at a time:

1. In the left navigation pane, select the Accounting menu.
2. Go to the Chart of Accounts.
3. Locate the account holding the transactions, then click View register.
4. Select the entry you want to unreconciled.
5. Keep selecting the letter R under the Reconciliation (indicated by a checkmark) column until the box is blank.
6. Press Save and then press Yes to confirm the modification.

For complete steps, open this link: Undo or remove transactions from reconciliations in QuickBooks Online.

Additionally, to help manage your past and present reconciliations, please feel free to read these articles:

• Reconcile an account in QuickBooks Online
• Fix issues for accounts you've reconciled in the past in QuickBooks Online

Please let me know in your reply if you require additional information about the process or other concerns. I'll be right here to help. Take care!

No Drop-down option, we done it ono by one, manually, but done.

Tks any way