Setting VERITAS NetBackup with a non-root NDMP user

VERITAS NetBackup NDMP setup with filers - How do I change the NDMP authentication from using root to another non-root user?
Add a user called ndmpuser for NDMP usage on the filer:

useradmin user add <ndmpuser> -g Users
ndmpd password ndmpuser

Type the challenge password into the following command on the NBU server:

set_ndmp_attr -insert -auth <filer_hostname> ndmpuser <password>

In case things go bad, delete and recreate the filer entries:

set_ndmp_attr -delete -robot