I am going through a painful experience with Buy Box eligibility.
The Buy Box, now known as “Featured Offer” is not guaranteed, I am told you have to “win” it. This is “system” generated and Seller Central are not able/willing to discuss individual eligibility.
This page decides on eligibility…
https://sellercentral.amazon.co.uk/help/hub/reference/200418100
Which gives me…
Currently, you are not eligible to be featured in the Buy Box for this item.
We are not able to discuss all factors that determine Featured Offer (Buy Box) eligibility, but below are some tips to help improve your chances of being Buy Box eligible.
*** Listings that are Fulfilled by Amazon (FBA) are automatically eligible to win the Buy Box**
*** Only Professional selling accounts are eligible for the Buy Box**
*** The better you perform in Performance Metrics, the higher your chances are of becoming Buy Box eligible**
*** Listings must have a sufficient order volume to be Buy Box eligible**
Selling Partner Support is not able to provide any further information.
I am a professional seller. I have good Account Health. I am offering 100 items. Free next day shipping. Currently I am the only UK seller.
So why am I penalised?
My product is also being sold from China with a 6 week shipping and 2-3 weeks dispatch time and they of course are awarded a Buy Box.
Absolutely disgusted.