Click on Invoice and Payments from Menu bar.

Choose "Future Invoices" option from the "Search By" drop down.

Choose the "FROM DATE" and "TO DATE" of the Invoice to be generated and click on search.

Select the Invoice to be generated from the search results.

Enter the Remarks and click on "Generate Invoice". (Remarks are optional)

If you would like to send invoice to client, select "E-Mail Invoice to Tenant" option.