---
title: "Check if the certificate is linked to WOs"
method: GET
path: "/workorders/isTechnicianCertificateUsedOnWorkOrders"
tags: ["WorkOrders"]
---

# Check if the certificate is linked to WOs

`GET /workorders/isTechnicianCertificateUsedOnWorkOrders`

## Request

- Base URL: `https://sb2api.servicechannel.com/v3`
- URL: `https://sb2api.servicechannel.com/v3/workorders/isTechnicianCertificateUsedOnWorkOrders`
- Auth: OAuth 2
  - Authorization code: `https://sb2login.servicechannel.com/oauth/authorize`
  - Token URL: `https://sb2login.servicechannel.com/oauth/token`
- TypeScript: <https://skmtc.dev/servicechannel/apis/servicechannel-api-v-3/docs/workorders/isTechnicianCertificateUsedOnWorkOrders/get.ts> (a function with typed inputs; its response is checked against the schema)

Verifies whether there are work orders associated with the certificate ID. Returns either `true` or `false` in the response. Use this method to see if the certificate can be deleted.
            <br />For providers only.

## Query parameters

- `certificateId` integer, required

## Response `200`

Refrigerant certification is verified against existing work orders.

- boolean

## Other responses

- `400`: The request is not accepted due to bad syntax, missing parameters, insufficient data, etc. <br/>Error codes: 100 &mdash; Only for provider usage
- `401`: The requested resource requires authentication. <br/>Error codes: 504 &mdash; API call rejected by security permissions
- `500`: Something went wrong, and the server was unable to complete your request. <br/>Error codes: 501 &mdash; Internal error

---

[API](https://skmtc.dev/servicechannel/apis/servicechannel-api-v-3.md) - [All operations](https://skmtc.dev/servicechannel/apis/servicechannel-api-v-3/llms.txt) - [OpenAPI document](https://skmtc.dev/servicechannel/apis/servicechannel-api-v-3/revisions/d490d6596809?raw)