At our recent conference on electronic coupon clearing, I reviewed some basics of coupon coding. After the explanations of family codes, I made the point -- loud and clear -- that if manufacturers change family codes, the most important thing they should do is alert the retailers.
Everyone agreed this was a good idea, of course, but manufacturers in the audience said, "I thought we weren't allowed to change family codes. Are you saying we can?"
Well, not that I'm the authority