Adobe Experience Platform (AEP), the foundation of Real-Time CDP, provides an event-based alerting system. To receive notifications for data ingestion errors from a source connection, a user must subscribe to alerts for the specific dataflow. The system offers predefined alert types, including Source flow run failed. By subscribing to this alert for a particular source dataflow, the practitioner will receive a notification—either in the UI or via email—whenever that specific data ingestion process encounters a critical error and fails to complete successfully. This is the direct and intended method for this use case.

B. Subscribe to failure alerts from monitoring Ul: This is imprecise. While you can access dataflow monitoring from the UI, the subscription action is tied specifically to a dataflow's properties, not a generic subscription "from the monitoring UI."

C. Create failure alerts in source workflow: This is incorrect terminology. Users do not "create" alerts within the source dataflow (referred to as a workflow here). Instead, they "subscribe" to existing, system-defined alert types.

1. Adobe Experience Platform Documentation

Sources > UI guides > Subscribe to sources alerts in the UI.

Section: "Subscribe to alerts"

Content: This document explicitly states

"This document provides steps on how to subscribe to email alerts for your source dataflows in the UI." It then lists the available alert types

which include Source flow run failed

directly supporting the terminology and action described in the correct answer.

2. Adobe Experience Platform Documentation

Sources > UI guides > Monitoring dataflows for sources in the UI.

Section: "Dataflow runs"

Content: This guide explains how to view the status of dataflow runs

including "Failed" statuses. It shows that the monitoring dashboard is for observing outcomes

while the alert subscription (described in the first reference) is the mechanism for proactive notification of those outcomes.

3. Adobe Experience Platform Documentation

Platform services > Alerts > Alerts overview.

Section: "Introduction"

Content: This document provides a high-level overview of the alerting framework

confirming that users can "subscribe to alerts for specific events

such as when a dataflow run has failed during data ingestion." This validates that subscribing to failure events for dataflows is the correct platform feature to use.