If there is a workflow processing failure, then the user listed in the User to Resolve Workflow Failures field will receive an email. If the email for this user is invalid or missing in EPM SA, or if the user is not defined or does not exist in the system, the check will fail.
To resolve this, you first need to see who that user is and then you need to edit that user's email address.
To see who the user is who is designated to resolve workflow failures:
In PM Compass, in the Navigation pane, click Administration » System Settings.
On the General tab, see the name of the user in the User to Resolve Workflow Failures field.
This is the user whose email failed the verification.
To correct the "User to Resolve Workflow Failures" email address:
Login to Deltek EPM Security Administrator using an account with SYSADMIN privileges.
In the left navigation pane, click Security and click Users.
Use the Search field or navigation arrows to locate the user that you identified in the User to Resolved Workflow Failures field in PM Compass.
Edit the Email field.
Click Save.
To correct the "User is not defined or does not exist in the system" error:
In PM Compass, in the Navigation pane, click Administration » System Settings.
On the General tab, enter a user that exists and with an email address listed in the EPM SA in the User to Resolve Workflow Failures field.
Click Save.
In PM Compass, verify the installed components again.