Microsoft Ads to replace Manual CPC with Enhanced CPC by end of April Microsoft Advertising says eCPC increases conversions while lowering CPA, but some advertisers worry about loss of control. Carolyn Lyden on February 9, 2021 at 7:00 am More Microsoft will transition all search, shopping, and Dynamic Search Ads campaigns that do not have automated bidding strategies to Enhanced CPC (eCPC) beginning in March. “Starting in March 2021 and continuing through April 2021, all existing search, shopping, and Dynamic Search Ads campaigns without any automated bidding strategies in place will be automatically migrated to Enhanced CPC. All ad groups and keywords will also be set to inherit bidding from their parent Campaign,” says the announcement.