# WhatsApp Business API for Microsoft Teams: Installation and sending the first message.

Installation guide

1\. First of all you need to choose a team where do you want to use our app, press "**more options**" and after that "**manage team**"

<figure id="bkmrk-">![embedded-image-jyfqwbfh.png](https://bookstack-support-u7942.vm.elestio.app/uploads/images/gallery/2026-03/embedded-image-jyfqwbfh.png)</figure>  
2\. Go to the "**apps**" =&gt; "**Get more apps**"

<figure id="bkmrk--1">[![image.png](https://support.chatarchitect.com/uploads/images/gallery/2026-06/scaled-1680-/image.png)](https://support.chatarchitect.com/uploads/images/gallery/2026-06/image.png)

</figure>3\. Write "**ChatArchitect.com for WhatsApp**" and choose our app to add to the channel

[![image.png](https://support.chatarchitect.com/uploads/images/gallery/2026-06/scaled-1680-/hW0image.png)](https://support.chatarchitect.com/uploads/images/gallery/2026-06/hW0image.png)

4\. Select a channel and press "**Go"**

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5\. After this you will be redirected to the channel that you choose and you will see "**install**" button. Press on it

<figure id="bkmrk--4">![embedded-image-b6qa5dn7.png](https://bookstack-support-u7942.vm.elestio.app/uploads/images/gallery/2026-03/embedded-image-b6qa5dn7.png)</figure>6\. You need to fill in **app id** and **app secret** and press "install"

<figure id="bkmrk--5">![embedded-image-yrdhfib7.png](https://bookstack-support-u7942.vm.elestio.app/uploads/images/gallery/2026-03/embedded-image-yrdhfib7.png)</figure><figure id="bkmrk--6">![embedded-image-vxbvawvz.png](https://bookstack-support-u7942.vm.elestio.app/uploads/images/gallery/2026-03/embedded-image-vxbvawvz.png)</figure>  
7\. Now you need to check incoming and outgoing messages:  
You need to write from your personal number on WhatsApp Business API number using this link wa.me/number

<figure id="bkmrk--7">![embedded-image-y7flpwa2.png](https://bookstack-support-u7942.vm.elestio.app/uploads/images/gallery/2026-03/embedded-image-y7flpwa2.png)</figure>