I just started selling on KDP this year, and my AMS setup was doing pretty well, generally biding .30-.45 for auto-targeting, and .25 for AISN aimed stuff, spending $15-25 a day.
Since yesterday though, I haven't served a single ad. When I get my recommended bids, AMS is telling me to bid $1+ for something that cost .20 last week. I'm assuming it's because it's December, a big retail season, and the month just began, so agencies have huge budgets to drop. Is this normal? Has anyone, with more experience, seen this in years past?