Navigate to https://business.google.com and click Sign In on the top right
Sign in with your email address/phone number and password
Click on Businesses
Click on See your profile
Click the three vertical dots next to Profile Strength
Click on Business Profile settings
Click on People and access
Click on Add
Enter "5543570187" where it says Email Address
Click on Funnel MVP Partners
Under Access, select Manager
Click on Add
That's it! You'll now have successfully added Owner.com as a manager of your Google Business Profile.