I'm glad you ask, cathy-deugen-com.
To answer your question whether you can perform a partial reconciliation then start up again the next day, is yes. It is possible. You'll just need to the select Save for later option.
Here's how:
- Go to Accountant then choose Reconcile.
- Select the account you want to reconcile.
- Start reconciling.
- Once done. click Save for later.

When you decide to resume just follow the steps below:
- Go to Accountant then choose Reconcile.
- Select the account you want to reconcile.
- Then just click on Resume reconciling.

In addition to that, you visit these links about reconciliation in QBO:
You can always count me in if you need more assistance with the reconciliation process in QBO. It will be my pleasure to help. Have a lovely day ahead.