Data Mismatch

Dea Experts,

I have a strange problem here. We have an ODS for which data is loaded every day from R/3 to PSA and then to the ODS. The data is then passed on. We found some errors in reports in cube and checked the records. I extracted the erronous invoices from R/3 today and checked them with the ones already in ODS. The ones I extracted now <i>doesnot</i> have "Invoice no."field filled up. But thesame records in ODS <i>have</i>the "Invoice no." filledup. I worked back.I have been to Se16 and searched for the PSA request for the data that was loaded before. I see that in PSA, data that was loaded sometime back, the invoice number field is filled up.

Now my problem is this:

1. In PSA, for the same record(key fields), there are two kinds of records(one with invoice number field filledup and other empty). The data that was loaded sometime back have the invoice number field filledup but empty in the data that was extracted by me to PSA recently.

2. I inquired but the data in R/3 hasn't changed.The log shows nothing.

3. Making things worse, I checked with recent delta(yesterday's). I extracted the same records to PSA and both of them have the invoice number field filled up. The data is extactly same as the data from the recent delta.

So,.......I am really confused what could be the "Ghost cause" for this problem.

I appreciate any kind of advise.

Thank you.