Purchase Order Quatity

Hi mates,

Field BWMNG is present in Data Source 2LIS_02_SCL and in my tranformation is mapped to InfoObject 0CPQUAOU

Both of the fields above is used to capture the quantity of Purchase Order.

I am loading in into Info Cube : 0RT_C05, however this InfoCube does not contain this Key Figure 0CPQUAOU

Could someone please explain which is the correct Key Figure to use to depict the Quantity of Purchase Order document ?