How do accessible track ids get applied to app using Android Management API

I'm using the Android Management API to provision kiosk tablets. I'm going through app testing - note that I'm using managed google play, and that this app is tied to an organization. I was able to provision via QR code, it downloaded the app to all of our devices (we have a separate policy per device). This all went swimmingly, really appreciate everyone that worked on this... it has made my life easier!

I didn't realize during this process that you could specify track id's; I had just pushed the app to the production track. Going forward, I want to provision devices with either alpha, beta, or internal app testing tracks. I did a release for internal 3 days ago, and a release for alpha and beta respectively yesterday. I created a new policy for a new test device and specified the track ids. I've done one id a time, just wanting to test that it downloads the app version from the track, and have also done it where I have specified all 3 track ids in the policy. No matter, it keeps downloading the version that I have on production track. For reference, the prod. version code is 5 @ 0.1.3, and the other 3 tracks are all higher version codes: Internal, 7 @ 0.1.4; Alpha, 10 @ 0.1.4, and Beta, 9 @0.1.4.

Am I misunderstanding how all of this is supposed to work? I'm wondering if perhaps not enough time has passed, that maybe the app's track info is just not updated yet. When I query enterprises.applications.get for the app, the appTracks[] are empty.

Side note, if I try to set a min. version code that is > 5, I get this error message: "Invalid minimum version code 7 for <app_name>. The published version code is 5".

How and when will my app get updated with the track releases I've created?
When the app does get the track updates, am I doing this correctly via the policies?
Once I'm able to provision an app that corresponds to the track, am I still bound by the 'published' version code? Meaning, if my test tracks are of a higher version code, can they be recognized and a higher minimum set for these these tracks on the policy?

Hope this is all clear enough; I could be misunderstanding. I appreciate any help.

Solution

For the release tracks to be available to your organization, you have to add the enterprise ID in the track under Manage testers > Organizations. For reference, you can check this link under Add organizations to the test section.

Once the track is added, it should be shown in the appTracks[] when calling enterprises.applications.get.

Track ID is added under Application Policy with the accessibleTrackIds field.

Your policy should look similar to this one:

{
                "packageName": "this.is.an.app",
                "installType": "FORCE_INSTALLED",
                "accessibleTrackIds":[
                    "XXXXXXXXXXXXXXXXXX"
                ]
            }
}