Activities : 0CRM_SALES_ACT_1

Dear all,

I need to extract the Activities from CRM to BW. This data must be extracted with the standard extractor 0CRM_SALES_ACT_1, in the ODS 0SAL_DS01, then in the InfoCube 0CSAL_C01. When I test this extractor in RSA3 (in CRM), I obtain "720 records", but when I want to extract the data in BW (from the InfoSource 0CRM_SALES_ACT_1 to the ODS 0SAL_DS01), I obtain "0 record"...

Does anybody know how to resolve my problem?

Thanks