I have an app deployed in aws account B, until now I had an acm certificate in account A for mydomain.com and *.mydomain.com and a hosted zone in account A with an A record for myapp.mydomain.com pointing to the alb in account B, so far this worked fine. Now the app needs to be moved to a new domain "mydomain.xyz" while at the same time maintaining support for the previous route. I proceeded to create a mydomain.xyz acm in account B and got the DNS delegated and the acm was validated, now my app is live under "myapp.mydomain.xyz" but it lost the SSL support under the previous myapp.mydomain.com even though nothing was changed in account A.
I'm thinking I need to update the acm in account B to also list the previous domain and update the DNS delegation, but wanted to make sure Im going in the right direction.
Also there's other records set up in route 53 in account A using the wildcard acm, is there any risk by adding the domain to the acm domain list in account B for any of the other domains listed in account A?