> ## Documentation Index
> Fetch the complete documentation index at: https://moengage-unity-sdk-initialization-split.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Why Did Users Fail To Receive the Event-Triggered Push Campaign?

> Resolve issues where event-triggered push campaigns fail to deliver due to DND periods, frequency capping, or campaign-level minimum delay rules.

## Problem

Push messages were not sent despite the campaign reaching and engaging a wide range of users.

## Cause

This issue could occur due to users being in a DND (Do Not Disturb) period, Frequency Capping (FC), or a Campaign-Level Minimum Delay.

## Solution

* To resolve this issue, remove nested filters when modifying the segmentation condition.
* Ensure that the user is part of the segment.
* Ensure that the campaign status is not set to stopped or paused.

<Warning>
  Nested filters are not supported in Smart Trigger campaigns.
</Warning>