Hi @Sujita ,
Thanks for the question. Are you still facing this issue?
Yes, you should be able to set up a custom domain through Cloudflare. Please keep in mind that it might take some time for the new custom domain to be reflected in the app's Custom Domains page. Try refreshing the browser to update the data.
Also, double check that you meet these requirements:
A webapp in a paid App service plan tier and not Free (F1)
A domain which maps to a domain name server
TXT, A records for the root domain, CNAME records for sub domains
A hosting service to host the application which maps to the A, TXT, CNAME records.
You can also read this blog post for more details.
Hope that helps. Please let us know if you have further questions
Best,
Grace
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