R/3 table

Dear Experts,

We are using the standard extractor 0FI_AR_3 for extracting FI data to BW. If I want to lookup this data in R/3 tables, which one do I need to check in? Is it BSEG? I tried to check the values for the delta that were uploaded today and BSEG says there are no entries. Am I looking at the right place?

Thanks.