I've always heard suggestiosn or tips for FB ads bidding is to START your campaign in CPC (in this case Post Engagement), THEN move to OCPM when necessary to get better results and value.
My question is:
1.What are the values and merits to be taken as a guide to move to OCPM.
2.What are the criteria and which numbers and figures to look for?
3.I've been on CPC for a week now, is it the right time for a change (if needed) or should I stick with it longer. I really don't know if I need to try OCPM or not.
4.My target are selling a product, My audience are about 800,00 / Female / 21-45 / Interested in Beauty .
Thank you very much.