Categories Implementation Updates Public seor.gmu.edu updated to version 3.3 of the Mason Standard GTM Container Post author By Jan Macario Post date June 8, 2018 seor.gmu.edu is now using version 3.3 of the Mason Standard GTM Container. It is also now sending its analytics data to the Volgenau roll-up property. Tags Department: Volgenau, GA roll-up implementation, GTM implementation, Website: seor.gmu.edu ← Volgenau Roll-Up Property Created → volgenau.gmu.edu updated to version 3.3 of the Mason Standard GTM Container