I made changes to the amount of XP which is gained by an achievement. Now I want to reset the achievements for users, so that their XP will be reset. It is currently too much. New achievements will reward the new XP, but the old XP is still visible in Google Play Games.
I tried to follow this guide for my developer account, and it didn't work: https://developers.google.com/games/services/management/api/achievements/resetAll
It resulted in { instead of the result listed on the page.
Any ideas?
This feature seems to be available only for draft achievements.
See: https://developers.google.com/games/services/management/api/achievements