question

Playfab does not support to trigger any native PlayFab action by the title-level PlayStream events, such as title_statistic_version_changed event. But you can consider using PlayFab Webhook to trigger an Azure function by title-level Play Stream Events. Webhooks allow you to have some or all of your PlayStream events forwarded to any web URL you want. The event data is sent via POST in the request body as JSON. So you can add a custom Http trigger function to your Azure function app. Then you can create a new PlayFab Webhook, let it forward the title_statistic_version_changed event to this Http trigger function to trigger something. If you use Webhook to forward the events to Azure function, you would need to handle these POST requests in the Azure functions on your own.

Besides, PlayFab leaderboard provides Prize Table feature that can trigger emails, send push notifications, grant Inventory Items and Virtual Currency, or execute a CloudScript function at the reset of a leaderboard. Actions in Prize table are triggered by the event player_ranked_on_leaderboard_version. And a prize table would trigger a set of actions on a group of players within a range of ranks. So only when you set the rank from 1 to 1 in the Prize Table, and this leaderboard has at least one rank, Prize Table would be a workaround for your case.

If it’s necessary for you to trigger a PlayFab action (like [Execute CloudScrip] or [Execute Azure Function]) through the title_statistic_version_changed event, you can try to add a feature request for it.