error: CNAME with DNS name support.acme.com. is not permitted at apex in zone support.acme.com

[Christopher Edgar]

I've got a top level domain hosted in godaddy.com.  For security purposes, let's call it acme.com.   

Godaddy is pretty terrible for managing DNS records so I've created a sub-domain in Route 53 called "support.acme.com" and added corresponding NS records in godaddy so that all DNS requests for support.acme.com talk to Route 53 name servers instead of Godaddy.  

I've created the custom domain, support.acme.com,  in Jira service management and it's created the required CNAME records for  customer.support.acme.com   and support.acme.com. 

When I add the customer.support.acme.com cname record, everything works as expected and it resolves.

 When I try to add the support.acme.com record, I get a "CNAME with DNS name support.acme.com is not permitted at apex in zone support.acme.com". 

 How do I resolve this? 

[Christopher Edgar]

I ended up just falling back to GoDaddy. I removed the subdomain from route 53 and added the CNAME subdomain records exactly as recommended in the JIRA custom portal area. Everything appears to be working fine.