# December 11, 2025 - Alarms raised for common Messaging Service errors

**URL:** <https://community.cumulocity.com/t/december-11-2025-alarms-raised-for-common-messaging-service-errors/14158>\
**Category:** Platform services\
**Tags:** Improvement, messaging-service, platform-services\
**Created:** [December 23, 2025, 7:06am UTC](https://community.cumulocity.com/t/december-11-2025-alarms-raised-for-common-messaging-service-errors/14158 "2025-12-23T07:06:36Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![cumulocity](https://dub1.discourse-cdn.com/flex005/user_avatar/community.cumulocity.com/cumulocity/32/31990_2.png) [@cumulocity](https://community.cumulocity.com/u/cumulocity)\
**Post date:** [December 23, 2025, 7:06am UTC](https://community.cumulocity.com/t/december-11-2025-alarms-raised-for-common-messaging-service-errors/14158/1 "2025-12-23T07:06:36Z")

</div>

## Context

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**Change Type:** Improvement  
**Product area:** Platform services  
**Component:** Messaging Service  
**Deployed at:** [eu.latest.cumulocity.com](http://eu.latest.cumulocity.com), [apj.cumulocity.com](http://apj.cumulocity.com), [jp.cumulocity.com](http://jp.cumulocity.com), [cumulocity.com](http://cumulocity.com), [us.cumulocity.com](http://us.cumulocity.com)

> **Technical details**
>
> **Build artifact:** cumulocity (2025.332.0)  
> **Internal ID:** MTM-62614

## Description

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With this change, the Cumulocity platform will raise an alarm when the Messaging Service fails to process a message.  
Issues reported in this way require user action to be resolved. Currently, this only happens when publishing to a Notifications 2.0 subscription fails because the underlying topic has reached its backlog quota limit. More information about Notification 2.0 backlog quotas can be found in the [documentation](https://cumulocity.com/docs/notifications/notifications-overview/#notification-2-0-service-quotas).