Unable to render {include} The included page could not be found.
How to get the embed URL
Google does not support uploading files in external applications.
Trying to embed a Google Form that contains a “File upload” question will result in a “docs.google.com refused to connect” error.
In Google Forms, click on Send in the upper right corner of the screen.
Click the link button, then Copy.
How to embed
Auto mode
Copy the public URL address of your Google Forms
Paste it into your Confluence editor
(Optional) Edit the viewer settings (at least 320x320 px).
Manual mode
Copy the public URL address of your Google Forms
Open the Google Forms macro in Confluence
Paste the URL of the form into the corresponding section
(Optional) Edit the viewer settings (at least 320x320 px)