---
sourceDocument: Yokohama Field Service Management
sourceDocumentLink: https://www.servicenow.com/docs/r/yokohama/field-service-management

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Field Service Management

ft:clusterId :

    - fsm

bundleId :

    - fsm

workflow :

    - Customer and Industry


---

# Trigger events on state changes

# Trigger events on state changes {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

You can configure a state flow to trigger a registered system event when a task transitions from a starting state to a specified end state. For example, you can use events to trigger email notifications and create script
actions.

## Before you begin

Role required: admin

## About this task

When you attach an event to a state flow, the ServiceNow system creates a business rule called State Flow Events for \<table name\> for the table specified in the state flow. If you specify a start and end state, the
business rule executes when the record transitions from the start state to the end state. If the state flow only specifies an end state, the business rule executes whenever that end state is reached. The system creates one
business rule for all state flows containing events on a single table. When all events or all state flows on a table are deleted, the system deletes the business rule.

To create an event that fires when a work order task moves from a starting state of Work in Progress to an end state of Closed Complete.

## Procedure

1. Navigate to AllField ServiceState FlowsWork Task Flows.
2. Select the Work Order Task table called Work Order Task \[wm_task\].
3. Select New.
4. Open the state flow record named Close Complete.
5. Select `task.closed` in the Event field and save your changes.  
   The ServiceNow system automatically creates a business rule called State Flow Events for wm_task.

*[\>]: and then