In BQE CORE, you have the capability to attach supporting documents or files, such as PDFs, directly to your invoices. This feature allows you to keep all relevant paperwork organized and easily accessible. You can add these attachments right from the invoice record within the Invoices screen. Once attached, these files remain linked to the invoice, ensuring you can quickly refer back to them whenever needed in the future. This functionality helps streamline your invoicing process by consolidating important documents in one place, improving both efficiency and record-keeping. Check CORE Help for details.