Why is a trigger not sending to any subscribers?

Last Updated: 20/8/2025 Tags: deploy, schedule, broadcast, queue, email

This article outlines potential reasons why a trigger is not sending messages to any subscribers, along with actionable troubleshooting steps.

Common Reasons and Troubleshooting

Multiple activities being triggered at the same time can lead to queuing or delays in processing.
Check: Review the activity logs and system queue for congestion or timing overlaps.

Required fields within the activity may be missing or invalid, causing the system to skip or fail the trigger.
Check: Make sure all necessary activity fields are filled in correctly and that the activity check passes its internal validation checks.

An invalid or overly strict target expression can result in no matching subscribers.
Check: Verify that the target expression is syntactically correct and correctly identifies the intended subscribers.

Area	What to Check
Activity Timing	Are other overlapping activities causing queue delays?
Activity Configuration	Is the activity check passing?
Target Expression	Is it valid and selecting the correct audience?
Subscriber Matching	Do subscribers meet the criteria set by the trigger?
Subscriber Status	Are the intended recipients active and subscribed?
Template/Channel Setup	Are all templates valid and delivery channels properly set?

If you have any further issues with your triggers, please contact Taguchi Support for further assistance.