Operational Feedback:
Click Mange Releases β Then go to the bottom of the page β Click Review . After that, the Publish button will be displayed.
Original answer:
It looks like an app store. Your application must be accepted by the tester to view and install on another device. "Ready for publication" does not mean that you can publish it around the world if you do not define an internal or external (Alpha / Beta) tester, and those who prefer to install the application should view your application.
https://support.google.com/googleplay/android-developer/answer/3131213?hl=en
Luck
source share