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Manual CPC helps control the bids, when you turn on maximize conversions you give the bidding to Google. I have turned on and off Maximize conversions to test and just a day later they were bidding 3-10x higher then I was manually via Top page bid..
Also, manual CPC until you get at least 25-30 conversions before even trying to turn on maximize conversions. A lot of their automated campaigns take control of bids and bid insanely high, and conversion tracking is so complex and annoying nowadays with Google. As well as websites that have so many CTAs (phone, form, chat ect.. ) I feel like sometimes the conversions being tracked aren’t even tracked right to begin with.
Don’t get me started on Pmax where they automatically bid on brand name so it looks like great metric low CPCs, high conversions.. of course it is because they bid on the brand name and its “banner ad” type traffic.
