Records not uploading

I was working with someone from Controlling side and she created two new records, after which I did a delta extraction. But no records came into my ODS or subsequent data targets. Also I would like to know what are the tables we look into while checking certain records. For example, a fellow consultant was looking at /BIC/AZCC_O_0100 . But i dont know what this refers to? Please help

Thanks

Fran