When you run the scan you look at the results and evaluate them. Typing in the stock picks in https://www.barchart.com/ you seperate the wheat from the chaff by filter. You keep the ones that have a "Green Strong Buy" with a "100%" endorsement only.
Even later if the ratings vary it is ok, timing is everything for the beginning of this trade method.
For instance this stock is still good. It was the best with Green Strong Buy and 100% endorsement previously, it is simply digesting its gains before the next move up.
One can use various methods to maintain profits. Some are complex and some are simple. The simplest is a 50 day moving average. If the stock later closed below the 50 day moving average, perhaps it is time to release and rescan.
I personally prefer checking stocks out on https://stockcharts.com/ and type in the stock symbol. Then if the bold macd signal line is above 0 then I keep holding. For advanced trading I might venture into selling covered calls when the RSI is above 70 to reduce risk and enhance profits.
For example we see RRGB is bullish, and indeed the MACD is above 0.
This chart is fine until the inevitable MACD end of day close below zero some day. This is no problem as usually it is a prompt to take profits to reinvest elsewhere and expand via compound investment.