Couple of things. I have created a new activation key and downloaded the SLED repos but when I try to create the bootstrap repo there is no option for SLED. Though it might use the SLES 12 bootstrap repo but it doesn't seem to like it.

Keep getting this error when trying to register it:

Downloaded: 1 files, 1.2K in 0s (305 MB/s)
adding client software repository at https://<hostname>/pub/repositories/sle/12/3/bootstrap
Retrieving repository 'susemanager:bootstrap' metadata ----------------------[\]
Download (curl) error for 'https://<hostname>/pub/repositories/sle/12/3/bootstrap/repodata/repomd.xml':
Error code: Curl error 60
Error message: SSL certificate problem: unable to get local issuer certificate
Repository 'susemanager:bootstrap' is invalid.
[susemanager:bootstrap|https://<hostname>/pub/repositories/sle/12/3/bootstrap] Valid metadata not found at specified URL

Still works just fine for the servers, Any Ideas ?