In order for Ploy to be able to send messages to any team and any user in your tenant we need you to upload our application to your teams app catalog. This allows us to install this application to any Team or User (just-in-time) when they receive a message.
To do so, first download the app manifest zip file. You will need to upload this in the next step.
The ZIP File is located at the bottom of this article, simply click the file to download
Now select the zip file you downloaded in Step 1 of this.
Now navigate back to your Ploy dashboard and click test on the Microsoft Team integration you have open. Once it succeeds click save.