Wich is the difference between “Total number of unique sources from all apalications” and “Total number of unique sources used in groups from all applications”?”

“Total number of unique sources from all applications” is the total number of SPs from all applications listed in the report. In this case, unique means that if the same SP appears in many applications it is counted only once. Also they are counted no matter if they are part or not of any group (they appear or not in the interface).

“Total number of unique sources used in groups from all applications” – This is the total number of SPs from all applications listed in the report. Unique meaning that if the same SP appears in many applications it is counted only once. Furthermore only the SPs that belong to a group (they are visible in the interface) are counted here.