Of the 23 siebel reference customers that agreed to confidential interviews , 61 % reported a negative roi after two years due to challenges with end - user training and customization 在23位同意接受私下采訪的賽貝爾推薦用戶中, 61 %的用戶指出由于終端用戶培訓(xùn)和用戶化的難度較高,他們使用兩年之后未能實(shí)現(xiàn)投資收益。