Multiple calls to identify for same userId on server-side?

[sharryy]

In the docs, I am unable to find that whether we can call identify every time user logs in. I want to integrate segment with my existing application and for existing users which are already registered, is it safe to call identify every time user logs in? Would it create duplicate users?

Since I am doing this on backend API, so how to track those users? Any leads would be appreciated.

Cheers.
Sharryy

[sharryy]

Never mind, got it. It won't create multiple users it would merge them with existing users.