Event ID - 4045

Event Id4045
SourceNotificationServices
DescriptionThe running of the rule failed. Please check the rule.
Event InformationAccording to Microsoft:
Explanation:

This error occurs whenever a subscription or chronicle rule fails. There might be a syntax error in the rule, or the timeout specified for the rule might not have been long enough. This error could also occur if the notification throttle was exceeded. The event log entry contains the inner exception, which gives an indication about the cause of the error.
User Action:
If there is a syntax error, edit the rule in the ADF. If the inner exception suggests that there was a timeout or a general network error, increase the ActionTimeout value for the rule in the ADF. If the inner exception suggests that the notification throttle was exceeded, increase the value of NotificationThrottle in the application execution settings in the ADF.
Reference LinksEvent id 4045 from source Notification services

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