When a folio is checked-in, and having today's departure date, the Check Out button will display in gray as inactive.
To activate Check Out button, the balance must be zero. Therefore you should review folio balances and settle them with payment, rebate or correction as necessary prior checking out
Zero balance folio
HOW TO REVERT CHECKED OUT FOLIO TO CHECKED IN
Checked Out folio is able to revert to Checked In status and make any change, adjustment and correction within the same business date
Once the folio is checked out, the Check Out button is replaced with REVERT button instead. And now you can select --> REVERT
