Marketing Cloud | ENS | CloudPage as a Webhook

Currently, Event Notification Services (ENS) is a methodology that can be used to log data around various Marketing Cloud Engagement Services. When using these, it is a requirement that a Webhook URL is set up in order to have a place to log these. In some scenarios customers may choose to utilize CloudPages as the Webhook URL to process this data and then log it or manipulate it in various way. When this is done, sometimes the customer may experience incomplete ENS data being logged to the relevant repository.

The above stated condition can occur more frequently than it would with a non-CloudPage solution as there is a timeout limit that is set at three seconds for call processing. If a CloudPage takes more than 3 seconds to process a particular set events, the events would be dropped causing a loss of the events in said logging. As a product, a higher percentage of completion is not able to be guaranteed through CloudPages for processing these events due to the frequency and volume that may be passed.   If successive calls take more than 3 seconds to process, a Callback Suspension can occur.