The Adobe Campaign documentation portal is currently experiencing some issues. As a consequence, some pages cannot be reached and return a CloudFront error that looks like this:
The team is working on fixing this as soon as possible.
In the meantime, if you need to access the documentation, you can download it in PDF format from the following pages (link is near the bottom of the page on the third column):
You can also ask your question to the community by creating a new thread.
I will update this thread when the issue is resolved.
The issue is now fixed and the docs portal can be accessed normally.
Thank you for your patience,