Microsoft Power Apps for Confluence allows you to easily embed Power Apps in Atlassian products.
How to retrieve a Power App’s URL
Play your Power App and copy the URL from your browser’s address bar.
Make sure that the URL looks like the one in the example.
https://apps.powerapps.com/play/...
Make sure that the app you’re embedding is accessible to your audience.
How to embed your Power App
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Copy the URL address of your Power App
In the Confluence editor, add the Power Apps macro from the toolbar or type /powerapp and confirm
Click on Edit.
Paste the app’s URL into the corresponding section
(Optional) Edit the viewer settings
Done!