What scenarios need to be licensed via the Open Hub license?
Simply speaking, the Open Hub license is an alternative to the user-specific license. If you extract data from your SAP NetWeaver BI to a non-SAP system, you have to license this scenario – no matter which tool use for the extraction, e.g. Open Hub Destination, listcube, any BI API, Analysis Process Designer or Excel download. Note that a licensed BI user may download to Excel for her/his own analysis purposes without any further license costs. Distributing Excel workbooks to non-SAP BI users for personal reporting purposes requires Information Broadcasting license, notOpen Hub license.
ALSO – Very useful presentation when dealing with SAP at license level : How to deal with the complexities of SAP – Advice on License negotiation