[Kingunit]

dealerid is a INT, so you need to use: I. Try the one with zcmd.

pawn Код:

CMD:gotodealership(playerid, params[])
{
    if(!(PlayerInfo[playerid][pAdmin] > 3)) return SendClientMessage(playerid, COLOR_RED, "Vous n'avez pas accиs а cette commande!");
    new dealerid, msg[128];
    if(sscanf(params, "i", dealerid)) return SendClientMessage(playerid, COLOR_GREY, "USAGE: /gotodealership [dealerid]");
    if(!IsValidDealership(dealerid)) return SendClientMessage(playerid, COLOR_RED, "Erreur!");
    SetPlayerPos(playerid, DealershipPos[dealerid][0], DealershipPos[dealerid][1], DealershipPos[dealerid][2]);
    format(msg, sizeof(msg), "Teleported to dealership id %d", dealerid);
    SendClientMessage(playerid, COLOR_WHITE, msg);
    return 1;
}