1. To find your hotel's email address, in Purchase Plus, go to [Suppliers] - [My Suppliers]. The Paperless Invoicing Email Address should be in its own column (same for each supplier):
If you cannot see this column, hover on any of the other table headers and click the arrow to select which columns are available.
2. You should then contact your supplier's accounts team and ask them to send copies of your future invoices to the unique Paperless Invoice Email Address.