The dropdown I think you're referring to under *Custom domains* lists domains you've verified. To the best of my knowledge, you cannot remove remove a domain from this list using this UI. This list simply shows the domains you've verified in Webmaster Central. These domains are re-verified automatically about every 30 days <https://cloud.google.com/appengine/docs/python/console/using-custom-domains-and-ssl#adding_a_custom_domain_for_your_application> by checking for the DNS verification string in your records. > > The domain verification is automatically re-confirmed about every 30 days. > So if you remove the verification string from your DNS settings, you will > lose the ability to change the configuration within the Cloud Platform > Console. However, if this happens, the serving setup for the domain does > not change and the app continues to serve over the custom domain.
If you *must* "unverify" a given domain, you can simply remove the DNS verification string from your records and you'll eventually lose the ability to change your serving setup. This isn't particularly useful. The main component that changes behavior with your domains and App Engine projects are the DNS records and domain mappings. The records help users resolve *your-domain.com* to Google front-end IPs and the domain mappings instruct the front-end to direct such requests to your App Engine application. Verifying your domain primarily just proves to Google that your application is in fact allowed to receive all the traffic for *your-domain.com* because you've shown that you "own" it (or can at least influence that domain's DNS records). If you map *www.your-domain.com* to *project-a*, you should not be able to map *www.your-domain.com* to *project-b* without first removing the project-a mapping. If you're allowed to map the same domain to the second project without altering the first's mappings, this behavior is somewhat undefined. To which project is the traffic going? On Friday, January 27, 2017 at 1:12:39 AM UTC-5, himanshu kapoor wrote: > > The issue which i am facing is that i added custom domain from > a...@gmail.com account for one working project in cloud which was already > mapped to some other custom domain, so now i have 1 project with 2 custom > domain. > > After that i created another account from x...@gmail.com and mapped same > custom domain there, so there it is showing same set of A and AAA records > as for project on a...@gmail.com > > Now i want to remove domain from a...@gmail.com account. > > On Friday, January 27, 2017 at 11:30:14 AM UTC+5:30, himanshu kapoor wrote: >> >> Thanks Vitaly for reply >> >> There is option to remove custom domain mapping but is there any way i >> can remove custom domain from dropdown list. >> >> On Friday, January 27, 2017 at 12:55:27 AM UTC+5:30, Vitaly Bogomolov >> wrote: >>> >>> >>> >>>> I want to remove custom domain from project and to add it in another >>>> project. >>>> Can anyone help out in this, i need to resolve asap. >>>> >>> >>> console.cloud.google.com -> your project dashboard -> settings -> >>> custom domains tab >>> >>> WBR, Vitaly >>> >> -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/be07b0ac-7a52-4d94-aba2-4591c66d23e8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
