How to do Gamelift MatchBackFill on a session that's created by flexmatch

Hey IndieGameDeveloperFromParallelWorld,

Auto backfill is generally meant for backfilling a game that starts early with only a few players (think matchmaking lobbies). When players are leaving the game, you should instead submit your own backfill tickets to provide an accurate list of players still in the game; otherwise, there's likely too many players to match more.

I recommend taking a look at our in-depth FlexMatch backfill guide. It has a lot of useful information for troubleshooting your processes! https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/match-backfill.html

Regards,