That sounds like it's because the user hasn't been assigned to one of the workflow roles:
- ROLE_WORKFLOW_ADMINISTRATOR (Workflow Administrator Role)
- ROLE_WORKFLOW_VIEWER (Workflow Viewer Role)
- ROLE_WORKFLOW_EDITOR (Workflow Editor Role)
This is managed using the SAS Web Administration Console (not in SAS Management Console where most other roles are managed).
You can find more info on this in the following documents:
- SAS Workflow Studio 1.3: User's Guide: Deploying and Maintaining Workflows
- SAS 9.4 Intelligence Platform: Middle-Tier Administration Guide: Using the SAS Web Administration Console, Managing Web Infrastructure Platform Privileges and Roles
I got that message when I used a demo user that wasn't in a workflow role and I was able to log in after I assigned them to a workflow role.