You need this to get it done:
Action DetailsRequirements and how-to articles for Google My Business's action:
Google My Business Account
A Google My Business account is required in order to provide the information for your listing.
Google Ads Account
A Google Ads account is required in order to be able to advertise on Google's services.
Once your My Business account is linked to your Ads account, go to your ad campaign in your Ads account and create a location extension using the address from your My Business account.