About 7 months ago, the used buy box for books suddenly began going to the lowest price, generally merchant fulfilled. This appears to be happening again. I noticed low sales for the day, so checked several detail pages and sure enough, nearly every books used buy box is going to merchant fulfilled at the lowest price.
Has there been any announcement from Amazon regarding this, or is it just another sudden huge, unannounced change?
Hopefully it will resolve itself, but last time this happened it took a good amount of time and had a large impact on sales.