App Engine > Subdomain > Add A, AAAA and CNAME record

[robert_sinclair]

I have a subdomain (subdomain.domain.com) when adding it to App Engine it tell me to add these records:

I added the A and AAAA records, but get an error when adding the CNAME record..

I read that I cannot have an A record and a CNAME record with the same name (example subdomain.domain.com).

Does that mean that I don't have to add the CNAME record or do I need to add it differently?

[robert_sinclair]

CNAME record is actually optional (wish this was documented)

[VishalBulbule]

Your domain registrar would be having cname records set already