Is user id uniq cross different apps?

REST API
1

If all the user ids of app A is setA, all the user ids of app B is setB, is the intersection of setA and setB empty?

2

@anon95222022
Yes it is. App user id is unique in all apps.
So, you can not intersect with app user ids.
As yet we don’t support the feature.

3

I am using Kakao App A in which user1 has 1234 id but when the same user1 is login with Kakao App B, the userId is something else. How it can be same in both?

4

Hi~

Tell me your app ID.
(My Application>App Settings>Summary > ID)