If you've ordered a report and requested it be delivered to a secure file transfer protocol (SFTP) location, but receive a notice informing you that the report was not delievered, you can still retrieve the report. Usage Analyst won't make additional attempts to deliver the report, so you'll need to go to the Download Center and manually retrieve your report.
To manually retreive a report:
Did you know? All pending and recurring reports using a failed SFTP location are put on hold until the SFTP location is revalidated.