Hi Krishna,
I need to know some more details. On what basis (fiscal period/ calmonth/ or any other time characteristics) is the data being archived in SAP BW cube.
Problem with SD documents is that there might be posting of the document from the old date in the recent load. In that case, the system won't allow you to perform archiving unless till date requests are compressed in the cube. We had also had similar kind of issue in QA system where we had to compress all the requests in the cube to archive the data in cube.
I hope this helps.
Best Regards,
Arpit