Let's isolate why the Reconcile button is unresponsive, vs73.

There are times that an issue like this is caused by a browser-related issue. That being said, performing some basic troubleshooting steps helps us fix this concern.

To start with, let's try reconciling on a private browser. This is the best place to identify any browser-related issues. You can use these keyboard shortcuts to open one:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P
• Safari: Command + Shift + N

If it works, you can go back to a regular browser and clear its cache. A piled cache can also be the reason for some unexpected page behavior.

You can also switch to a different supported browser like Google Chrome, Mozilla Firefox, Microsoft Edge, or Safari.

Afterward, let's continue reconciling your accounts. I've added this article as your guide: Reconcile an account in QuickBooks Online.

Feel free to tag my name in your response. Have a great day ahead!