This article describes what to do if the automated test failover was not performed at the scheduled time and you've got the following alert:
"We could not perform the last scheduled automated test failover of the 'XXX' recovery server. We will try again on the next scheduled date. You can also start the test failover manually."
Why is the alert displayed
You can configure automatic test failover of your recovery servers to be performed once a month at a scheduled time.