I have a client with 20+ GA accounts within their instance, and so far I have not been able to figure out an easy method of reporting the total, global raw number of sessions across all the accounts. The only method I can think of, so far, is to click through every single account and then record that number.
I tried importing that data into Data Studio, but it allows you to pull data from one GA account at a time.
I realize some of them would be duplicate users, but we are trying to price out a number of tech solutions for the client -- which requires the total monthly session average across all accounts.
Thanks in advance!