Variable Data Printing Get Started!

A business rule to make this work for the copyhole that contains the promotional image would look something like this (conceptually):

IF current_product = A use Promo_image1

ELSE

IF current_product = B use Promo_image2

ELSE

use Promo_image3

The method to achieve this will vary based on the software you use, but this gives a general idea of the conditional logic for a simple business rule. You don't need to be an expert in database management systems. That is the domain of the client supplying you the data.