You need to check the health of your eDirectory™ tree both before and after you extend the directory schema with ZENworks 7 attributes. The following resources provide the information required to perform the health check:
Directory Health Check Procedures - Cross Platform: TID 3564075 available in the Novell Knowledgebase.
Checking the OS and DS Health for Inconsistent ZENworks behavior: TID 10062741 available in the Novell Knowledgebase.