can't load data to cube :Exception in Substep Write to Fact Table

hi, expert

i am try to load data from dso(just 70 records) to custom cube, and i am get some errors:

Exception in Substep Write to Fact Table

Messages for 1 data records saved; request is red acc. to configuration

Processing terminated

my bw is 7.3 sp4. i have check the note 1657246 - Problems loading data in BW 7.3 SP4&5

i can't confirm is it a sap programe issue. i have reactive cube, dtp, transformation, or try create a new cube, still error.

how to sovle this issue? thanks for help.

xwu.