This is my first time playing QuantConnect. My project is cloned from the initial example except the data resolution. I noticed there is no trade in backtest when I use daily data?

Also I have another question.

If I use two data source (one is SPY, one is a quandl data), how to set the OnData(* data) method.
OnData(Quandl data)
OnData(TradeBars data)
or both.