Open the Store locator app and go to Store's page.
Click on the "Add New Store" button from the right top.
You need to add store name and address, then you can add your Country’s Name, State, City, Zip Code, Phone Number, etc. After that, you can enter your email id, your business website, and business hours.
Also you can add a search filter and extra fields too.
By clicking on Find my store location, you can get your location from the address as mentioned by you in step 1/Basic Details. Also by using I know my Coordinates you can set the map as per the longitudes and latitudes you have added.
You can also see a preview of your Map.
Click on the "Save Changes" button to save/add.