الفرق

FlockMultiplayerProvider multiplayer = FlockClient.Instance.Multiplayer;

// The party from last time, or a new one: 2 to 64 players, 4 when not given.
FlockParty party = await multiplayer.GetMyPartyAsync()
    ?? await multiplayer.CreatePartyAsync(4, new Dictionary<string, object> { ["mode"] = "coop" });
inviteCodeLabel.text = party.InviteCode;

party.MembersChanged += () => ShowMembers(party.Members);   // in the order they joined
party.LeaderChanged += () => leaderControls.SetActive(party.IsLeader);
party.Ended += reason => ShowMainMenu(reason);

FlockParty joined = await multiplayer.JoinPartyAsync(typedCode);
if (joined.TryGetSetting("mode", out string mode))
    ShowMode(mode);

await party.UpdateAsync(settings: new Dictionary<string, object> { ["mode"] = "hard" });   // replaces all settings
await party.KickAsync(playerId);
await party.MakeLeaderAsync(playerId);
await party.DisbandAsync();

await party.LeaveAsync();   // when the leader leaves, the first of the others leads

#include "FlockSubsystem.h"
#include "Multiplayer/FlockParty.h"

// The party from last time, or a new one: 2 to 64 players, 4 when unset.
GetSubsystem<UFlockSubsystem>()->GetMultiplayerProvider()->GetMyParty([this](TFlockResult<UFlockParty*> Mine)
{
    if (!Mine.IsSuccess())
    {
        UE_LOG(LogTemp, Warning, TEXT("%s"), *Mine.Error.ToDisplayText());   // what went wrong, then its fix
    }
    else if (Mine.Value != nullptr)
    {
        HoldParty(Mine.Value);
    }
    else
    {
        GetSubsystem<UFlockSubsystem>()->GetMultiplayerProvider()->CreateParty(4,
            FFlockCommandData().Set(TEXT("mode"), TEXT("coop")),
            [this](TFlockResult<UFlockParty*> Made) { if (Made.IsSuccess()) { HoldParty(Made.Value); } });
    }
});

void UMyGameInstance::HoldParty(UFlockParty* InParty)
{
    Party = InParty;   // a UPROPERTY
    ShowInviteCode(Party->GetInviteCode());
    Party->OnMembersChanged.AddDynamic(this, &UMyGameInstance::ShowMembers);         // GetMembers(): in the order they joined
    Party->OnLeaderChanged.AddDynamic(this, &UMyGameInstance::ShowLeaderControls);   // IsLeader()
    Party->OnEnded.AddDynamic(this, &UMyGameInstance::ShowMainMenu);                 // ShowMainMenu(EFlockPartyEndReason Reason)
}

GetSubsystem<UFlockSubsystem>()->GetMultiplayerProvider()->JoinParty(TypedCode, [this](TFlockResult<UFlockParty*> Joined)
{
    FString Mode;
    if (Joined.IsSuccess() && Joined.Value->GetSettings().TryGetString(TEXT("mode"), Mode))
    {
        ShowMode(Mode);
    }
});

Party->Update(TOptional<int32>(), FFlockCommandData().Set(TEXT("mode"), TEXT("hard")), nullptr);   // replaces all settings
Party->Kick(PlayerId, nullptr);
Party->MakeLeader(PlayerId, nullptr);
Party->Disband(nullptr);

Party->Leave(nullptr);   // when the leader leaves, the first of the others leads