Hi,
Each time Notification part runs, it logs events into the event viewer. In case of unexpected behavior, check events to troubleshoot. For more information or for debugging purposes, refer EWS Traces in events. To display trace and logs in the event viewer, open command prompt in administrator mode in the Service Manager Console machine and set the env var EXTERNALEWSLogs value to 1 (setx /m EXTERNALEWSLogs 1).
Please see the following link for additional information:
Configure notifications in Service Manager
https://learn.microsoft.com/en-us/system-center/scsm/notifications?view=sc-sm-2022