Home › Google Adwords Question Will all of your performance metrics be lost if you edit an ad with an ad extension, if you are using Enhanced Campaigns? By · Monday, November 24, 2014 Will all of your performance metrics be lost if you edit an ad with an ad extension, if you are using Enhanced Campaigns? Answer - No. Google Adwords Question GA Gaurav Arora, Digital Media Lead. 10+ years running paid media and tracking for brands in the USA, UK and Canada.