Hi @gyutaelee,

For one-way follow: brainCloud doesn’t have a built-in one-way “follow” graph, so you’ll need to implement your own follower/following system using one of the user data mechanisms (e.g. global or entity data) to track who follows whom. This keeps it independent of the Friends API, which is designed around mutual relationships. GetPresenceOfUsers() works with any valid profile IDs, it does not require a Friend relationship between the players to return presence info.

For the referral rewards question: I’m going to forward this to our team to review the best server-side approach for triggering rewards for both the referrer and referee once the milestone (like reaching level 3) is reached.

Thanks for the detailed explanation of your use cases.

It's been resolved. Thank you for your response!

Q1: The removed player is completely excluded from reward calculation, so if the deletion happens before the job runs, that player is never iterated over and receives no rank or rewards.
Q2: Yes, the modified score will be used. The job always reads live state. Note that whether the score actually gets modified depends on the leaderboard type (e.g., for the LOW_VALUE type, only updates if the new score is less than the existing)
Q3: No backfilling, the next joiner goes to the latest instance, not the freed spot in ^2. No loop over earlier instances (^1, ^2) ever happens. The next joiner goes to ^3 (or ^4 if ^3 is full). The freed spot in ^2 stays empty permanently.

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