---
sourceDocument: Yokohama IT Operations Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/it-operations-management

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# Troubleshoot synthetic monitors

# Troubleshoot synthetic monitors {#ariaid-title1}

* Release version: Yokohama
* 
* Updated October 21, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Read these topics to understand how to fix common issues in synthetic monitoring.
* **[Upgrade issues](https://servicenow-prod.fluidtopics.net/O2fnvRhrpZNtrgzT3OdPNg)**   
  What to do when monitors don't work after upgrading synthetic monitoring.
* **[OAuth issues](https://servicenow-prod.fluidtopics.net/0kZTqReM8_e7Ew9oQaebFQ)**   
  Learn how to fix OAuth token refresh issues.
* **[Impacted Service not appearing in alerts](https://servicenow-prod.fluidtopics.net/XOKiM3XShfT9_d3_t8aFlA)**   
  When a test fails for a monitor and you have configured an alert to trigger, the alert record should show the impacted service. There are a few reasons why this field might not be populated.
* **[Bulk monitor import issues](https://servicenow-prod.fluidtopics.net/uv8fxWGQDimWBm~pLXxFkg)**   
  Learn to fix issues that might occur when you create monitors in bulk.