User exist CCUX0008 does not take effective
I implement user exist CCUX0008 with very simple code NO_EXPL_EXT_PROCUREMENT = 'X' . in ZXCUCU15 include file.
After I active it I found the external procured components still explore their children materials in T-code cu51/cu52/cskb/csk1/csk2/csk3.
I am very puzzled what's happened? and could somebody tell me what the CCUX0008 do indeed and what is the logic of it?