HOW TO GRANT ACCESS TO GOOGLE TAG MANAGER?
1.Using a Gmail account with access, log in to Google Tag Manager.
2.Next, to the right of your account container,click on the three vertical dots >User Management.
3.Then, click on the +button.
4.Finally, enter the email, grant the necessary permissions, and send the invitation.
5.The user will receive an email with the invitation that they should accept.