I have set up my app store listing and uploaded two versions in the Internal test track and everything got reviewed. I want to move my app to production at a specified time. For this, I have found Managed Publishing. It is recommended to upload the app to Closed Test Track in Google Play Console if we want to manage our app's publishing. So, I have enabled the Managed Publishing for the app and promote my release from Internal Test Track to Closed Test Track. The version is Ready to Publish in Closed Test Track. Since, I want to avoid delay in my app launch due to review process, I tried to promote the release from Closed Test Track to Production. I have saved the details and done Review Release, now the console display the Start Roll out to Production button. If I give Start Roll out to Production, will the app be published immediately in Play Store or wait in Managed Publishing section. In the documentation, they have said "Your app must already be available to use managed publishing. You can’t use it when publishing an app for the first time." It leads to my confusion. I have also planned to enable pre-registration for my app. So, if my app get published immediately, it will affect my plan.
I had the same issue and I did a test. If you turned on Managed Publishing the production will not be be published immediately. It will wait on Managed Publishing until we manually release.