Dynamics AX 2012 Companion Applications: Support for ACS and SAS
As of May 1st, the replacement solution to support SAS is still in progress. Existing services will continue to work, but a replacement solution will be published as soon as it is available. If you have a critical situation with no ability to create a new namespace, please log a Dynamics support case and request to be contacted by the product team who can work with you to understand your requirements.
Please see the most recent updates found: August 2018 ACS update