When I'll optimize a campaign, how should I do it? Are there any specific rules or recommendations? Should I Pause this when It's edited? Note: When I edit my campaign, the results drop. why is this happening? Is there any time for editing?

Been seeing a ton of stuff online recently about people using YT Shorts ads to pretty much "blow up" their ad accounts. I really haven't seen much success with them even when bringing over winning creatives from Facebook. Are they measuring success with shorts based on a lift in performance for PMax campaigns?

Are you adding these pmax campaigns directly into new accounts or are you running standard shopping alone until a certain amount of conversions have been achieved before creating pmax campaigns?