<p>Registers a player's acceptance or rejection of a proposed FlexMatch match. A matchmaking configuration may require player acceptance; if so, then matches built with that configuration cannot be completed unless all players accept the proposed match within a specified time limit. </p> <p>When FlexMatch builds a match, all the matchmaking tickets involved in the proposed match are placed into status <code>REQUIRES_ACCEPTANCE</code>. This is a trigger for your game to get acceptance from all players in the ticket. Acceptances are only valid for tickets when they are in this status; all other acceptances result in an error.</p> <p>To register acceptance, specify the ticket ID, a response, and one or more players. Once all players have registered acceptance, the matchmaking tickets advance to status <code>PLACING</code>, where a new game session is created for the match. </p> <p>If any player rejects the match, or if acceptances are not received before a specified timeout, the proposed match is dropped. The matchmaking tickets are then handled in one of two ways: For tickets where one or more players rejected the match or failed to respond, the ticket status is set to <code>CANCELLED</code>, and processing is terminated. For tickets where players have accepted or not yet responded, the ticket status is returned to <code>SEARCHING</code> to find a new match. A new matchmaking request for these players can be submitted as needed. </p> <p> <b>Learn more</b> </p> <p> <a href="https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/match-client.html"> Add FlexMatch to a game client</a> </p> <p> <a href="https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/match-events.html"> FlexMatch events</a> (reference)</p>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}