Question
What do "Filtered at destination" and "Failed delivery" mean for Segment Audiences, and which metric should I use to monitor event delivery to destinations like Iterable?
Product
Segment Destinations
Environment
Segment Console
Answer
"Filtered at destination" for Segment Audiences means that events were discarded by Segment before being sent to the destination, based on filters, mapping rules, or consent preferences. This does not indicate a rejection by the destination platform. To monitor actual delivery issues, use the "Failed delivery" metric, which shows events that Segment attempted to deliver but could not due to errors such as invalid credentials or rate limits. "Failed delivery" is the most reliable metric for identifying and troubleshooting delivery problems.
Additional Information
The "Filtered at destination" count may include events from other audiences or journeys that do not match the mapping for a specific audience, making it less useful for audience-level monitoring. For more information, refer to Segment's documentation on destination filters and actions destinations.