Update-MSMailboxesCustomFields
Update Custom Fields from Mailboxes.
Syntax
Update-MSMailboxesCustomFields -Updates (Array) [-UpdateReadOnly] [-UpdateInvisible] [-UpdateLocked] [-Append]
Update-MSMailboxesCustomFields -Path (String) -PathInstanceId (Int32) -PathDataValue (String) [-UpdateReadOnly] [-UpdateInvisible] [-UpdateLocked] [-Append]
Update-MSMailboxesCustomFields -FieldId (Int32) -FieldInstanceId (Int32) -DataValue (String) [-UpdateReadOnly] [-UpdateInvisible] [-UpdateLocked] [-Append]