Do you want to revert reconciliation in your QuickBooks account? There can be different reasons why you must know how to be unreconciled in QuickBooks such as mistakenly recording the wrong data or the transaction may have been checked off suitably and may have found that it was not created. To undo reconciliations QuickBooks has provided an ‘undo a reconciliation’ feature. And in case you need to undo an entire reconciliation, you may need to download the attachment that is linked to the reconciliation.