Earlier advertisers can set conversion actions at the account level but from now they can do at the campaign level for video ads. Campaigns such as search and display video ads now can be optimized at a campaign level.
Also Read: Google Ads Moves To Standard Delivery
Conversion Actions:
Conversion actions are customer’s actions that are very valuable for the advertisers. These actions could be in the form of purchase or sign up etc. These conversion actions can be used to evaluate performance. It further helps in optimizing the bidding strategy.
2951 
