When you're raising a Xero invoice for your guests or agents through Preno, you can set a default due date to speed up the process of approving the invoices.
Preno automatically sets a default of 20th of the current month.
To update this default, go to Settings > Property and find the section called Invoice settings.
Options for setting the due dates are:
Due x day(s) after invoice is issued
Due on a specific date of the current month
Due on a specific date of the following month