We're thinking about using Inventory Item Custom Data to drive some new game systems we're working on, with some ephemeral / per-player stats that wouldn't be appropriate for the Leaderboards/Stats APIs.
Our game server will be hitting this API: https://docs.microsoft.com/en-us/rest/api/playfab/server/player-item-management/update-user-inventory-item-custom-data?view=playfab-rest
It'll be hitting this for 64 players; even if we try to limit the update rate, it's still going to have to go through a lot of players, and there's no batching mechanism in this API. Is there a possibility we'll get rate limited? Is there a way to avoid that?