Amazon PPC - too much Impression on Product pages

Hello everyone,

i made in the begging this month 2 campaigns for my product, which is newly launched on amazon (i am product owner and no other seller offers this product). One campaign is for tight keywords and the second one for general keywords.

Checking the split of the impressions, i noticed that my first campaign (tight) 99% of the impressions are shown on product pages (this issue exists since starting the campaign) even though i set the placement multiplier for top of search (80% on top of bid) and rest of search (60% on top of bid).

Second campaign don't have this issues and the impressions are split much more balanced (placement multiplier are slightly less than on tight campaign.)

Bids for both campaigns are slightly above recommended bid from Amazon. Dynamic bids down only.

Asking Amazon why the proportion of the tight campaign is not like the second campaign, they replied:

* **Behavior by System Design (No Bug):** The fact that 99% of impressions for close targeting end up on product pages is intended system behavior. The system places ads where the target audience is most active, such as competitor product pages or similar items. * **No Placement Guarantee Despite Bid Adjustments:** Bid adjustments for top search results increase your chances for those placements, but they do not guarantee complete control over ad delivery * **Real-Time Fluctuations in Broad Targeting:** Impression distribution varies dynamically over time based on real-time factors like customer search behavior, competition, seasonal demand, and marketplace dynamics * **No Inherently Lower Conversion Rate:** Amazon states there is no official confirmation that product pages generally convert worse than top-of-search placement on the first page. Conversion performance depends on product relevance, pricing, and customer intent. * **Recommended Strategy:** Instead of focusing on fixed placement percentages, optimize bids based on actual performance data, such as ROI and historical conversion rates.

Do you believe, what amazon says to this? I have read on different postings, that the top of search/rest of search got much better conversion and because of that i want to be there of course.

What should i do? Wait for few days and check how the shares of impressions are or decrease bids for keywords and increase the placement multiplier even higher?

Just a little information about the product. I sold it on my own website in multiple countries, so the listing is not a problem for a conversion, i think. Product got distinctive look.

I would be happy for many responses from you.