Google Play Developer API - “The current user has insufficient permissions to perform the requested operation.”

Question

I have a Google dev console process with Google Play Developer API is enabled and the project is linked to Google Play project. In Google Dev console project, created OAuth

Answer 1

For me the reason i had this issue because I did not check the permission to Release to production, exclude devices and use app signing by Google Play in Google Playstore console for the service account I created to manage app creation and management.

So check Users and Permission in the Google Play store console and check if the appropriate permission is checked.