---
title: COLLABORATION Butler – API Overview
description: "Here our API overview: [COLLABORATION Butler API](https://eu1.pdfbutler.com/files/api/cadmusuna/MSGraphClient.html) For Unit Testing make sure to init the client as in the example in our Apex Docs. A Mock is required in a running test context: [COLLABORATION Butler API - createMock](https://eu1.pdfbutler.com/files/api/cadmusuna/MSGraphClient.html#MSGraphClient.createMock)"
url: "https://pdfbutler.com/academy/collaboration-butler-academy/collaboration-butler-for-sharepoint/collaboration-butler-api-overview/"
updated: "2023-10-04"
category: COLLABORATION BUTLER for SHAREPOINT
---

# COLLABORATION Butler – API Overview

Here our API overview: [COLLABORATION Butler API](https://eu1.pdfbutler.com/files/api/cadmusuna/MSGraphClient.html)

For Unit Testing make sure to init the client as in the example in our Apex Docs. A Mock is required in a running test context: [COLLABORATION Butler API - createMock](https://eu1.pdfbutler.com/files/api/cadmusuna/MSGraphClient.html#MSGraphClient.createMock)