Thanks for sharing your feedback about the undo-reconciliation feature for QuickBooks Online, @BillT66,

I completely understand where you're coming from, and I can see the inconvenience this has caused your business. Having the option to redo a previous reconciliation for regular QuickBooks subscriptions is a great idea to add in our program.

I know that having to go through manually editing each transaction can be a real pain when you have more important things to be doing. Our developers are implementing new features based on the functionality that works best for most users. I'm taking note of this request and making it my top priority that it reaches our developers. For now, you can follow Kristine Mae's workaround by undoing a reconcile one at a time.

Let me know if there’s anything else I can do to assist you today. I’m always available to help if you ever need one.