No data extracted by 0CO_OM_NWA_1 dataSource

Hi experts,

I m facing a little problem with the 0CO_OM_NWA_1 dataSource. Actually, I m trying to extract data about "Ntwork Activity Cost", so I activate the dataSource using RSA5.

When I test the dataSource using t-Code: RSA3, it extracts just baseLine data, and any data created  by our customer are displayed!!

I have also checked the data in those table: AFKO, AFVC, AUFK, COSP, and they contain the customer data.

Is there any other steps to get real data using the 0CO_OM_NWA_1  dataSource?

Thank you in advance.

Abdess,