Hello Bharani,
Yes, it is possible to grant/revoke access to the email address. You could refer
this article to grant access. Before granting the access you could take a look at the available access levels from
here. Also, note that this action can only be performed via UI but not via API.
Regards,
Sai Teja, Google Ads API Team

ref:_00D1U1174p._5001UBmsNj:ref