Everything is based off your main primary confirmation indicator.
From the point in time that you receive a signal from the main confirmation indicator only then will you look at your other indicators.
Although your secondary indicator is not at the point of signally yet and/or neither is your volume indicator giving you enough volume.
You can wait one more candle after and enter if your secondary indicator and/or volume indicator have caught up and are giving you a signal.
All of those things must be true before you can enter.
If your volume indicator or secondary indicator catch up 2 candles or more later, nope, too late. Cannot enter!
This hard rule is put in place so that you accurately follow a set of rules.