MSS Substitution - Position Based and Change Fields

Question

Hi Experts,
We are on EHP7 and using NWBC (POWL) for work item. We have set-up position based substitution. But when the user logs in, he/she don't see work item of other user. We have set-up A210 relationships between positions. Do we need to set-up anything else?
Second Question,
On MSS when we set-up substitution, it shows Assignee -  PERNR not User Name. How can we change the fields to show User Name instead of PERNR?
Regards,
Ashish

Answer 1

We would like to see User Name instead of User IDs as Manager may not remember person with User IDs. In this scenario, substitution created from Manage Substitution Rules (Create Rules). In Assignee field it shows User ID and we would like to see User Name.
Regards,
Ashish