FB Ads CPC vs. CPM

Hello,

I have set up a campaign a few days back for a CPA offer by offering a max 0.25$ CPC. It has now run for 2 days and I have a CTR of almost 5%. I have been paying about 0.2$ per click overall and $10 CPM.

I would like to, now, switch it to CPM to pay even less per click. How much should I set the max CPM now? 3,5,7$?

Will I still get impressions at such a low rate? How does this moving to CPM from CPC now that you have determined your CTR go exactly in your opinions?

Any input would be appreciated!
Thanks!

Experiment with it. Start higher and then go lower.

That's what I am planning on but whereas any changes I made before use to be approved instantly it now seems to take forever (WTF)..

PS: 25 ppl like and shared the offer from their news feeds, I should not be charged for that reach since it was not done directly thru FB ad right?

Any other ideas on this?

It depends on which groups you promote your ads to, if it is small group look through the list if it has a lot of fake accounts, if so then go for the cpc

manking said:

It depends on which groups you promote your ads to, if it is small group look through the list if it has a lot of fake accounts, if so then go for the cpc

Click to expand...

They are a scraped list UIDs. About 12k leads in total after adding some extra filters. Pretty sure they are all legit. Changed from CPC to CPM. Use to pay $10 CPM, set maximum to $5. I this works, the value of the CPA should (finally) surpass the cost.

What about the fact that ppl like the offer and share it? 25 in total. Do those count towards the CTR as well, or the extra leads that they generate through their friends?

Thanks!