Yes with help from Support
We had to set on the ADFS console - ADFS Claim Rules for YourSpace
Attribute Store: Active Directory
LDAP Attribute: SAM-Account Name
Outgoing Claim Type: Name ID
To make the SSO connection to YourSpace, an IdP initiated logon needs to be done.
For ADFS, the url is:
[url]https:///adfs/ls/idpinitiatedsignon.aspx[/url]
It is possible to select the site automatically, there is a URL generator to do this here:
https://jackstromberg.com/adfs-relay-state-generator/
it will create a link eg:
https://adfs.YourDomain.com.au/adfs/ls/idpinitiatedsignon.aspx?RelayState=RPID%3Dhttps%253A%252F%252FYourDomain.com.au%252FYourSpace%252Fmetadata.awsamlm%26RelayState%3Dhttps%253A%252F%252FYourDomain.com.au%252FYourSpace%252Facs.awsaml
We then changed the logon.html to include a redirect as
<!DOCTYPE html>
<html>
<head>
<title>Your Space Single Sign On</title>
<meta http-equiv = "refresh" content = "2; url = https://adfs.YourDomain.com.au/adfs/ls/idpinitiatedsignon.aspx?RelayState=RPID%3Dhttps%253A%252F%252FYourDomain.com.au%252FYourSpace%252Fmetadata.awsamlm%26RelayState%3Dhttps%253A%252F%252FYourDomain.com.au%252FYourSpace%252Facs.awsaml" />
</head>
<body>
</body>
</html>