Symptom
Submission activity shows Released to production; the store is 404 in every region.
Cause
Play runs *country/region and listing changes* and *version (aab) releases* as separate trains. It was an empty production track with only countries opened; the aab was only on a test track.
How to tell: don't trust the console, measure
curl -s -o /dev/null -w "%{http_code}" -A "Mozilla/5.0" \
"https://play.google.com/store/apps/details?id=<pkg>&gl=KR"
404 means not released. Production showing "Inactive" on the dashboard is the same signal.
Fix
Production > Create new release > (Add from library) > Review release → press "Start rollout to Production." Without that button it never ships. Then Send for review from the publishing overview.
Side notes
Where managed publishing is switched off, and what the "recommended actions" really are
Managed publishing is turned off in the dropdown at the top of the publishing overview. If you want an immediate release, turn it off before approval.
The recommended-actions warnings (edge-to-edge, deprecated APIs, orientation restrictions, R8) are usually caused by an outdated helper library. They clear on their own on the next build after bumping it, so don't chase them one by one.