Kudos to Pedro Luis Carvalho who came up with the original idea!
When you generate an SSL certificate from Let's Encrypt you must go through the verification challenge.
Different options are available but when you're using the OutSystem cloud, there is no easy way to verify your domain.
This utility will allow you to upload the verification files and correctly serve them via the URL your.domain.com/.well-known/acme-challenge/cryptic_file_name used by Let's Encrypt.
Option to Copy & Paste the text content of the challenge when creating a new challenge since most tools display this information.
The file name will be inferred from the text but please do check if it matches what's on the generating tool you are using.
This avoids having to create a separate file and upload it.