After performing a Sandbox refresh this afternoon, I continued working on a Lightning app I am building. When I tried to preview the app from Developer Console in my Sandbox I received the following error:
"Lightning Domain Not Available DNS Entry for Lightning is not
available yet. Cannot redirect to
https://recruitment–TandemDev.lightning.force.com/c/EmployeeSelfService.app.
Please try again later."
The refresh completed at 1:16PM EDT. It is now 5:08 PM EDT and the domain is still not available. It appears the instance location changed after the refresh so I don't know if that is part of the problem.
I wasn't sure if there are normally domain issues like this that will resolve themselves after some time or if I need to create a ticket with Salesforce support?
Best Answer
I talked to Salesforce about this issue. I showed them the issue over a screen share. They said it falls under developer support, which is for premium or premier customers only, and that they could not help me, but it does seem like a bug.
I was able to work around this by deleting the sandbox, and recreating it. I did change the name as well during this process, since I wanted to make sure the domain was different just in case. So this is not a great solution, but maybe the only option if you do not have developer support.