> ## Documentation Index
> Fetch the complete documentation index at: https://docs.catenatelematics.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Trailer vehicle association modified

> Emitted when a trailer-vehicle association is modified in our database.

e.g. The record fetched from the TSP is different from what we had stored in our database and it prompted us to update the existing record.



## OpenAPI

````yaml https://api.catenatelematics.com/v2/notifications/openapi.json webhook trailer_vehicle_association.modified
openapi: 3.1.0
info:
  title: Notifications Service - REST API
  description: Notifications Service REST API.
  version: 0.1.0
servers:
  - url: https://api.catenatelematics.com
    description: Catena Telematics API
security: []
tags:
  - name: Webhook Subscriptions
    description: >-
      Create and manage webhooks to subscribe to events and receive
      notifications when they occur.
  - name: Webhook Event Schemas
    description: Get the OpenAPI 3.0 schema for our versioned webhook events.
  - name: Webhook Events
    description: View available webhook events.
paths: {}

````