Hello, Claudia. Has the reconciliation been finalised, or is it still in progress? If it's still ongoing, you can easily update the ending date by heading over to the Accounting section and selecting the Reconcile tab. Choose the specific bank account, then click on Resume Reconciling. From there, click on Edit Info in the upper-right corner to adjust the date or year before saving your changes.
However, if the reconciliation is complete, you'll need to unreconcile transactions individually in the account register. Here's how:
- Go to the Accounting menu, then select Chart of Accounts.
- Locate the account you're working on, and click on View Register.
- Find the transaction you want to unreconciled.
- Select the transaction to expand the view.
- In the checkmark column, select the box with the R until the box is blank. This removes the transaction from the reconciliation.
- Select Save.
You can find more in-depth instructions in this article, which provides a full walkthrough of the procedure: Undo or remove transactions from reconciliations in QuickBooks Online.
Alternatively, you can invite an accountant with a QBO Accountant subscription to undo the entire reconciliation for you at once.
I've also added an article that will help you in case you encounter other reconciliation issues: Fix issues when you're reconciling accounts.
Feel free to reply to this post if you need further assistance.