I am using Pega 7.1.9, I followed those steps but for some reason I am getting this issue:
PegaRULES:07.10] (nActivity.Code_Security.Action) ERROR aesmonitor-dev.wellcare.com|10.5.75.9 - Error while executing the Authentication Service activity : Unable to process SAML2 Authentication response : No attribute statements found in the SAML Response,Unable to deduce an operator record for further processing
I was able to work with the ADFS admin and got it all squared out. He had to do some modifications to the ADFS side so that he can pass the correct parameters for the activity to authenticate properly. Now the next step is to have a custom activity in which it will parse parameters from AD; like email; full name; etc..and based on those parameters autoprovision the account or not.