Replicate the below catalogs from the patch channel onto the ZENworks 11 SP4 server:
OES2015-SP1-Pool
OES2015-SP1-Updates
SLES11-SP4-Pool
SLES11-SP4-Updates
For more information on creating and replicating subscriptions, see Section II, Subscriptions. After replication, assign the bundles to the OES 2015 server.