These are all the places in GroupWise Web where Name Completion helps you:
Recipient fields in a Compose window (Mail, Appointment, Task, and so forth)
Share With field when sharing a folder or a calendar
Add User field for the following actions:
Create Group
Proxy Login
Manage Proxy Access
NOTE:Beginning in GroupWise 18.5, Contact entries that are filled out for Job Title and Department fields are displayed for those contacts in the Name Completion list. This can help minimize the risk of sending messages to the wrong person for same-named contacts.