The percentage of users in the given track to which the uploaded file(s) should be rolled out.

If you enter 100%, the app will be rolled out to all users, and the release will be considered complete, i.e. you will be unable to reduce the rollout percentage for this release.

If you enter 0%, a draft release will be created, meaning that users will not yet see it; the existing file(s) released in the given track, if any, will remain in place.

For more information on staged rollouts, see the Google Play documentation:
https://support.google.com/googleplay/android-developer/answer/6346149


This field supports substituting environment variables in the form ${SOME_VARIABLE} or $SOME_VARIABLE at build time.