After configuring the user mapping to SAPMARKETPLACE, as per my OSS ID and the current working password,
I am having trouble downloading from the following steps:
PORTAL > Portal Content Portfolio > Browse Content Portfolio > Self Service >
Download for Business Package for Employee Self-Service (mySAP ERP) Release 1.0
From https://www.sdn.sap.com/irj/sdn/developerareas/contentportfolio (returns the following error):
The Page Cannot be displayed. Firewall and proxy servers were eliminated and the problem still persists.