A Sponsored Products campaign that loads the same core high-relevance, high-volume ('money'/'alpha') keywords used in the corresponding exact-match ranking campaigns, but targets them as broad match only, giving Amazon room to surface related high-performing search terms. Add phrase negatives (see Amazon Negative Keywords) to block irrelevant queries this discretion invites.
In practice this broad-match version posted the best ACOS of an entire ten-campaign launch structure — yet the exact-match versions of the same keywords still received the heavier ranking-focused budget, because the broad-match campaign's efficiency doesn't replace the exact-match campaign's organic-ranking effect; the two serve different jobs.
Из тем: PPC Campaign Structure & Bidding