Do set actions know about previous sets

If I have a set the values of some columns, will the second column I’m trying to set know that the first column was changed? I want to check if the first column was set to blank by this action so that I can change another column if it is blank.

You can write expression for the column’s set value i.e.

	ISBLANK([ColumnA]),"ColumnA is blank"

image Hiring Req gets set to blank if there is no new jobs for them. When relevant keywords is evaluated will hiring req be blank if there were no new jobs?

You need to re-order the columns. Put [RelevantKeywords] column on top of [HiringReq] column