Sometimes we may have a need to connect WAAE to another existing DB. This KB will let you know how to do it.
How to Connected WAAE 11.3.6 SP7 Scheduler to Existing 11.3 SP1 DB?
1) Stopped all autosys services on r11.3 SP1 version and it should be never started or remove EventServer_1 from Config file.
2) Unregistered EEM and keep WAAE 11.3.6 SP7 and keep it in native security mode
3) Take the r11.3 SP1 WAAE DB details and update in r11.3.6 SP5 config file.
On Primary, Shadow and TB
4) Ran autosys repair Or RefreshAEDB.pl which points to new DB.
5) Registered EEM
Please raise a case to support if any additional questions.