This is the name of a lansa IIP function that runs on the server during sign on. It is run after the user has connected to the server, but before VLF authority is evaluated. It receives the user profile that the user signed on as, and can return a user profile, as well as other values.
This function must exist on the server.
In VLF-WIN see source for function UF_SYSBR/UFU0005 for more details.
In VLF-ONE see VLF-ONE Snap-In Points Summary . Look at the class VF_AC027O snap-in.
This property is in the Server Details tab.