# 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"

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2\. Go to the "apps" =&gt; "upload an app" and upload a file that we sent to you

<figure id="bkmrk--1">![embedded-image-eoztcses.png](https://bookstack-support-u7942.vm.elestio.app/uploads/images/gallery/2026-03/embedded-image-eoztcses.png)</figure> 3. Upload a file that we will send you and press "add"

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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

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6\. You need to fill in **app id** and **app secret** and press "install"

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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/855388801854

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