I too share in the frustration of QB removing the "Closed" status for estimates and I am in total agreement with all of the prior comments shared. This in fact is not an improvement at all but a limitation to all of the users of QB online. What would be wrong with re-instating the feature of being able to close an estimate without converting it to an invoice or any of the other options previously stated that are not as good as simply "closing" the estimate? There's an acronym K.I.S.S. Let's keep it simple.