we (Pega 8.3) plan to invoke a system which requires OAuth2 authentication with grant type password.
I have to create an "Authentication Profile" rule, where I can set username/password. But in those text fields I cannot set values directly. It was requested to have a property reference. Here I would like to used a data page reference. But what is the syntax to query it here rather it is possible.
I checked here also documentation, which is not detailed enough. Please also check the attachment: