How to handling duplicate data in infocube

Hi BW expert,

I have problem with my data in infocube, the data has been duplicate since loading data from R3 to infocube. the data in infocube look like this :

Curr Amount

IDR 50,154.08

IDR 50,154.08

IDR 50,154.08

IDR 68,382.00

IDR 68,382.00

IDR 68,382.00

IDR 110,171.00

IDR 110,171.00

IDR 110,171.00

I only use 2 table VBAK and VBAP to produce that output.

why did it happen ?, and how to handle it ?, please help me...

Thanks before,

FKA