[PrawkC]

pawn Code:

CMD:makeadmin(playerid, params[])
{
    new pID, value;
    if(PlayerInfo[playerid][pAdmin] < 1338) return SendClientMessage(playerid, 0xFF0000AA, " you are not authorized to use this command!");
    if(sscanf(params, "ui", pID, value)) return SendClientMessage(playerid, 0xFF0000AA, "Usage: /makeadmin [playerid/partofname] [level 1-1338]");
    if(value < 1 || value > 1338) return SendClientMessage(playerid, 0xFF0000AA, "Unknown level! Only 1 to 1338");
    if(pID == INVALID_PLAYER_ID) return SCM(playerid, COLOR_GREY,"Invalid player id");
    
    new pName[MAX_PLAYER_NAME], tName[MAX_PLAYER_NAME], string[128];
    GetPlayerName(playerid, pName, MAX_PLAYER_NAME);
    GetPlayerName(pID, tName, MAX_PLAYER_NAME);
    format(string, sizeof(string), "You have promoted %s to Admin level %i", tName, value);
    SCM(playerid, COLOR_LIGHTBLUE, string);
    format(string, sizeof(string), "You have been promoted to Admin level %i by %s", value, pName);
    SCM(pID, COLOR_LIGHTBLUE, string);
    PlayerInfo[pID][pAdmin] = value;
    return 1;
}

Try that