HI Minh
I am not sure how you can get assistance from the BI side .. in terms of a std report
But in SRM itself you could try by ABAP coding to create a new report
Use FM : BBP_PD_SC_GETLIST to get the list of all SC in the system
Then using another FM 'BBP_PD_SC_GETDETAIL' check the Active status it has and finally you could
display it as an ALV report ..
Also please note the SC rejected by the buyer would have status as " Release rejected" or cannot be ordered... this you will be able to differentiate if you put the logic to only select the status as I1129 having Inactiv as Blank and also note it should not have the status I1113 as Active then those SC are the ones which are approved as well as Follow on doc created .
Hope it helps .. if not let me know
Regards
Vinita