Question: I am ready to send my first app to beta testers, so i click on '**Manage Beta**' > '**Manage testers**'

![add a new List with one tester in it](https://i.stack.imgur.com/omaHR.png).

and '**Save**' and '**Resume**'

APK is uploaded > '**Review**'

The review summary says '*This release is ready to be rolled out.*', but the button labled with '**Start to rollout to beta**' is disabled: ![disabled button](https://i.stack.imgur.com/TH9Bd.png).

Answer: 
This can happen if payment for a recently created account is still processing, even if all mandatory sections are completed. I just created an account and I had this issue. I realized that my payment for the account creation was still processing. Once it's processed it's possible to publish the app.
Your payment may not have cleared yet. It takes 48 hours after creating your account.