We get the following error when adding a custom domain in firebase
Also, notice that the Prepare domain step is just blank on Advanced Setup mode which should have instructions to add an A record and TXT record/s. Clicking Verify does not do anything.
But on Quick setup, the instructions to add CNAME is there
We'd like to push for the Advanced setup and add an A record because that's how we've done it on all our existing custom domains.
Also, the domain we're adding is from the DNS of a new external customer. We've done similar setup for other external customers before and didn't have this issue.
Also, let's say we're getting the error from adding foo.bar.com. If we try to add baz.bar.com, we don't get any error and there are instructions on the Advanced setup as expected.
How do we troubleshoot further? Thanks!
EDIT: we we're able to fully setup baz.bar.com (but still NOT foo.bar.com). Our customer mentioned that foo.bar.com is NOT a subdomain which might be relevant to this issue but not sure what to make of that yet.
Our custom domain (e.g.
foo.bar.com) is now connected to firebase. I guess we just needed to wait for a few hours for the DNS records to be propagated. And the error was likely a red herring and could be ignored.