Query about CRM

Hello, I have a query regarding

0crm_oppt_i

datasource. There is a field 'PRODUCT ID' in the datasource. in table ORDERADM_i, I can see there is some data in that field but when i run rsa3 it works for some records but not for other some records. It is NULL in some cases but in some other cases it is accurate. do you know why?

Thanks.