Before you can increase your usage limits beyond 1000 devices, you need to join the Android Enterprise EMM Provider community—a closed community where developers can access private documentation and guidance, post questions, and work with Google to bring their solutions to market. As a member of the community, you will also receive support from Google experts.
To join the community:
Try out the Android Management API. Copy the Google Cloud Project ID you use.
Complete registration as a new user in the Android Enterprise Partner portal.
Login to the Partner portal and click Apply for communities to submit your application to join the Android Enterprise EMM Provider community. Paste your Google Cloud Project ID where prompted.