The Guest Folio Receipt is the text that is showing below the detailed stay charges, as shown below.
Path: Management > Setup > Property > Forms
To update/customize this text, follow the next steps.
If you add too much text, it might carry over to a second page, even if there's nothing else on that page except the overflow. Always test-print the folio to ensure that it appears on one page as expected.
1. In the "Guest Folios" section, click on "View" next to "Guest Folio Receipts".