When we complete OLMIS-4896, and we will have three user resources in three different services:
auth's user resource that contain details like username, password and enabled flag
reference data's user resource that contain details like first/last name, jot title, etc.
user's contact details in the notification service
The problem that could occur is how to manage those resources in such way to avoid data inconsistent. After short discussion on dev group we decided to implement the solution in which each resource is independent.