[AnssiH]

I can also reproduce the issue, i.e. "Failed to activate certificates." a few seconds after clicking "Enable managed security" with 4 domains checked.

I checked the DNS records and the CNAME, A, AAAA records of all the domains match exactly what is shown on the admin console.

[mbwalas]

Can you try using gcloud? There may be a UI problem.

[AnssiH]

Thanks, it worked fine with the gcloud command.

[lklig]

We've found the glitch in the UI and the issue will be resolved shortly. Thanks for all the support and quick testing after announcing this beta release.

[lklig]

Happy to report everything is working as expected, go get those managed certs!

[adeanzan]

I was able to reproduce the problem through the UI. I was able to get it working by using the gcloud CLI instead.