Platform event triggered flow launches when a platform event message is received. This auto-launched flow runs in the background. Similar to objects we can use the platform event field values from the platform event message by referencing the $Record global variable.
The post details a method to display a warning message on Salesforce, suggesting fields to complete or correct to improve contact data quality. The solution involves creating a "Platform Event," an Apex Trigger, and a Lightning component in Salesforce. Apex Trigger publishes an event which the Lightning component subscribes to. Upon receiving an event message, the Lightning component sends a warning message to the user.