Most data merge operations create the merged documents and then never update them again. Other projects, like point-of-sale signage, mailers, and a host of other VDP designs, need to be able to update, alter, and even completely replace the data set after merging using a Live Merge document. This clip is a teaser that shows you exactly how a Live Merge document works.
Excerpted from Pariah Burke’s comprehensive Pluralsight video course, InDesign CC: Data Merge & Variable Data Printing: http://abbrv.it/vidIDVDP