We use secondary privileged accounts for domain admins. The task to update the primary account such as jdoe is successful, but when I create an update account task for jdoe-da, i get the error message below.
Can you paste the log lines when there is error when its trying to find the samaccountname. Also this looks more of issue than a new implementation. You can raise a FD ticket as well on this so that we can check around the logs and see whats the issue around.
Also these accounts ( -da ) were created from saviynt or only pulled via target. Also check on the domain ( OU ), it looks like with accountname its not finding any account in target.