Right now if you want to look at, for example, first touch Attribution,
for an action that has occurred during the last two weeks, it is very
likely that you will have a high proportion of that action attributed to
none. This is because the look back window is calculated from the date
range to a default (depending on if you are using visit or visitor).
However, this current behavior assumes that you will always want the
same look-back window across the board. In reality there are times where