CPA: Spending less than previous
I have Adwords campaign in CPA basis. Month-by-month my spending goes down. Everything is fine with the conversions but in March was almost 300 daily clicks when now less than 90. I have attached a screen. Nothing was changed during this period.
Any thoughts? Maybe I have to switch back to CPC to get clear data for few weeks and then use CPA again?
Re: CPA: Spending less than previous
Hi Evgeniy, how close was your target CPA to the average cost/conversion you were seeing before you used CPA? What percentage of your daily budget is your typical CPC? e.g. if your budget is $50 a day and your average CPC $1, that's 2%. How many conversions per month do you have, overall and per Keyword?
I'm wondering if AdWords is struggling to achieve your desired CPA and/or has insufficient data to operate effectively on a CPA basis.