If I wish to backfill spaces in a peer to peer game that uses Playfab Party, what's the recommended way of doing that?
I tried using PlayFabMultiplayerAPI::CreateServerMatchmakingTicket, but currently this can't be called from a client, I get the error "The entity of the caller must be one of types: title". I also see from the docs that clients can never cancel backfill tickets, which limits their usefulness for this scenario.
I guess I can use a a standard matchmaking ticket, and use a Match Total Rule to stop two backfilling tickets from matching together, but that doesn't give these tickets the higher priority setting, and they'll affect our queue statistics.
Any advice?