investment profile to AUC?

hi all,

can any one please make me understand me that the difference between summary breakdown and line item settlement?

i came to know with f1 help that summary breakdown is nothing but all line items together will make whole sum and settled to only one AUC. or one cost object or one g/l account

and in line item settlement single single line ltem will seperatly settled to differenr AUCs or orders or gl account......

am i correct..:)

Please guide me in this complex underastanding to me.

Thnaks.