For detailed instructions on creating invoices, see How do I create an invoice in Collaborati?. To ensure that your invoice becomes a shadow invoice, choose Shadow Invoice from the Invoice Type field in the invoice header and, optionally, enter the related invoice number in the Reference Number field in the invoice header.

You can use the same invoice number in a Shadow Invoice as an existing Standard invoice, unless that Standard invoice's status is Rejected.

Note: If the Shadow Invoice choice in Invoice Type is not shown, report the problem to the client.