If you go to Google’s website, they have the following:
“Manage all your Google Ads accounts from one place. Previously known as My Client Center (MCC), Manager Accounts can help you manage multiple accounts. With a single login and dashboard, this online advertising manager can save you time with reporting, access control, and consolidated billing.”
You don’t need 10 different logins to manage 10 accounts and you can allow clients to maintain ownership of their Google Ads account.
What is a Google Ads Manager account?
It is an account that agencies, consultants, and freelancers can create when they create and manage Google Ads campaigns for other companies.
How do I create a Google Ad Manager account?
It is very easy, you just need a Google account and you need to navigate to their main page for Manager Accounts here: https://ads.google.com/home/tools/manager-accounts/
How do I manage multiple Google AdWords accounts?
You need to create a manager account and link individual client accounts to your manager account. Then, you can easily access client accounts and campaigns using Google Ads without logging out and logging in.
Helpful URLs:
Create a Google Ads Manager Account: https://ads.google.com/home/tools/manager-accounts/
About Google Ads Manager Accounts: https://support.google.com/google-ads/answer/6139186?hl=en