When i run KKA2 for the level 1 wbs, all the cost and revenue aganist lower level wbs will be included,that's what I need,and no erro popout.
But when I run KKAJ, low level WBS was selected, and the erro message no KJ101. how can I excluded the low level WBS element in KKAJ,but also included cost of lower level WBS?
Within the data selection variant you can select WBS elements based on the RA key assignment, I would assume those are all billing elements. Or just select billing elements instead.