Home › Google Tag Manager Fundamentals Answers When first logging into Google Tag Manager what will you need to set up? By · Monday, September 18, 2017 When first logging into Google Tag Manager what will you need to set up? · The Data Layer · A Tag Manager account · Cross-domain tracking · A Google Analytics account Google Tag Manager Fundamentals Answers GA Gaurav Arora, Digital Media Lead. 10+ years running paid media and tracking for brands in the USA, UK and Canada.