Log in to Google Ads and in the top right corner click on Tools and Settings, then select Access and security.
Click on the tab security and select allowed domains. Here for my clients add feedarmy.com or if you are using this guide for your clients, enter the domain name associated with your business.
Navigate to the Users tab and click on the blue plus icon.
Enter [email protected] in the email field and select standard access, now click on send invitation.