Fill cube field from an ODS in BW

Hi Guys,

I have a DSO1 and CUBE1 with the fields below. I need to fill the field CUBE1.0DOC_NUMBER from DSO1.0DOC_NUMBER by the key 0CRM_OBJ_ID. Do you have a suggestion? I tried by ABAP routine on the transformation but doesn't work.

My problem in CUBE01:

Wish result in CUBE1:

DSO1:

CUBE1:

Thanks.

Igor Valle