Important: Keep this JSON file safe! It contains credentials to access your Play Console. Also note the service account email address - you'll need it in the next step.
This is the most important step!
client_email field)name@project-id.iam.gserviceaccount.comNote: You no longer need to link your Google Cloud project to Play Console. Simply inviting the service account email as a user is sufficient.
When inviting the service account, grant these permissions:
You can grant permissions at the Account level (all apps) or for specific apps only.
Your package name uniquely identifies your Android app. It looks like: com.company.appname
You now have everything needed to connect
This guide is based on the official Google documentation: Getting Started with the Google Play Developer API