Looking at a Pmax campaign that has been going since 2022. Lots of history in the campaign. Low spend throughout 1200-1500. No remarkable points in results like it wasn't really dialed in, a lot of asset changes (not necessarily best sellers), conversion rate on its way down currently but not out of range of the last year.
Haven't gotten into the history on the audience signals yet.
One top-performing product in ads has a sold out variant. That listing page needs work because the way the page copy appears is not clear if the product is sold out or just one color.
General Question - What is the life of a pmax campaign?
Campaign Specific Question - Can this campaign turn around from a few months of meh results and random changes? It's currently limited. Client was working in the account with auto apply on or making guesses based on recommendations after pausing service provider help.
Thanks :)