How to find the Google Place ID for the 5-Star Review Configuration
Step 1: Click on the below link
https://developers.google.com/maps/documentation/javascript/examples/places-placeid-finder
Step 2: Type your organization name in the enter location search box.
Step 3: You will find the place ID in the dropdown below.
(Eg. Place ID: ChIJFwAAwNe7wjsR-ZpIhM27hTs)